OWNER’S MANUALRead this manual carefully before operating this outboard motor. OWNER’S MANUAL...

Read this manual carefully before operating thisoutboard motor.

OWNER’S MANUAL

F200LF200F225LF225F250LF250

LIT-18626-09-716AL-28199-32-E0

U6AL32E0.book Monday, April 9, 2012 11:55 AM

©2019 Yamaha M

otor Corporation, U.S.A.

ZMU07696

Les gaz d’échappement du moteur de ce produit contiennent des substances chimiques connues dans l’État de Californie pour provoquer le cancer, des anomalies congénitales et des troubles de la reproduction.

Read this manual carefully before operating this outboard motor. Keep thismanual onboard in a waterproof bag when boating. This manual should staywith the outboard motor if it is sold.

U6AL32E0.book Page 1 Monday, April 9, 2012 11:55 AM

©2019 Yamaha M


Important manual informationEMU44140

To the ownerThank you for selecting a Yamaha outboardmotor. This Owner’s Manual contains infor-mation needed for proper operation, mainte-nance and care. A thorough understanding ofthese simple instructions will help you obtainmaximum enjoyment from your new Yamaha.If you have any question about the operationor maintenance of your outboard motor,please consult a Yamaha dealer.In this Owner’s Manual particularly importantinformation is distinguished in the followingways.

: This is the safety alert symbol. It is usedto alert you to potential personal injury haz-ards. Obey all safety messages that followthis symbol to avoid possible injury or death.

WARNINGEWM00781

A WARNING indicates a hazardous situa-tion which, if not avoided, could result indeath or serious injury.

NOTICEECM00701

A NOTICE indicates special precautionsthat must be taken to avoid damage to theoutboard motor or other property.

TIP:A TIP provides key information to make pro-cedures easier or clearer.

Yamaha continually seeks advancements inproduct design and quality. Therefore, whilethis manual contains the most current productinformation available at the time of printing,there may be minor discrepancies between

your machine and this manual. If there is anyquestion concerning this manual, please con-sult your Yamaha dealer.To ensure long product life, Yamaha recom-mends that you use the product and performthe specified periodic inspections and mainte-nance by correctly following the instructions inthe owner’s manual. Any damage resultingfrom neglect of these instructions is not cov-ered by warranty.Some countries have laws or regulations re-stricting users from taking the product out ofthe country where it was purchased, and itmay be impossible to register the product inthe destination country. Additionally, the war-ranty may not apply in certain regions. Whenplanning to take the product to another coun-try, consult the dealer where the product waspurchased for further information.If you purchased this outboard motor used,see your Yamaha dealer to have it registeredin your name in Yamaha records.

TIP:The F200A, LF200A, F225A, LF225A,F250A, LF250A and the standard accesso-ries are used as a base for the explanationsand illustrations in this manual. Thereforesome items may not apply to every model.EMU44150

F200, LF200, F225, LF225, F250, LF250OWNER’S MANUAL

©2012 by Yamaha Motor Co., Ltd.1st Edition, March 2012

All rights reserved.Any reprinting or unauthorized usewithout the written permission of

Yamaha Motor Co., Ltd.is expressly prohibited.

Printed in Japan


©2019 Yamaha M


Table of contents

Safety information.............................1Outboard motor safety .................... 1

Propeller ............................................. 1Rotating parts ..................................... 1Hot parts............................................. 1Electric shock ..................................... 1Power trim and tilt............................... 1Engine shut-off cord (lanyard) ............ 1Gasoline ............................................. 1Gasoline exposure and spills ............. 1Carbon monoxide ............................... 2Modifications ...................................... 2

Boating safety ................................. 2Alcohol and drugs............................... 2Personal flotation devices .................. 2People in the water............................. 2Passengers ........................................ 2Overloading ........................................ 2Avoid collisions................................... 2Weather.............................................. 3Accident reporting .............................. 3Boat education and training................ 3Passenger training ............................. 4Boating safety publications................. 4Laws and regulations ......................... 4

Boating organizations...................... 4Basic boating rules

(Rules of the road) ....................... 5Steering and sailing rules and sound

signals............................................. 5Rules when encountering vessels...... 5Other special situations ...................... 6

General information ..........................9Identification numbers record.......... 9

Outboard motor serial number ........... 9Key number ........................................ 9

Read manuals and labels.............. 10Warning labels.................................. 10

Specifications and requirements... 13Specifications ................................ 13Installation requirements ............... 14

Boat horsepower rating .................... 14Mounting motor ................................ 15

Remote control requirements........ 15Battery requirements..................... 15

Specifications of Battery................... 15Mounting battery............................... 15Multiple batteries .............................. 15

Propeller selection ........................ 15Counter rotation models ................... 16

Start-in-gear protection ................. 16Engine oil requirements ................ 16Fuel requirements ......................... 17

Gasoline ........................................... 17Gasoline Additives............................ 18

Muddy or acidic water ................... 19Anti-fouling paint ........................... 19Motor disposal requirements......... 19Emergency equipment .................. 19Emission control information......... 19

North American models .................... 19Star labels ........................................ 20

Components .................................... 22Components diagram.................... 22

Remote control box .......................... 23Remote control lever ........................ 24Free accelerator ............................... 24Throttle friction adjuster .................... 25Engine shut-off cord (lanyard) and

clip................................................. 25Main switch....................................... 26Power trim and tilt switch on remote

control ........................................... 26Power trim and tilt switch on bottom

cowling .......................................... 26Power trim and tilt switches

(twin binnacle type) ....................... 27Trim tab with anode.......................... 27Tilt support lever for power trim and

tilt model........................................ 28Cowling lock lever (pull up type)....... 28Flushing device ................................ 29Fuel filter/Water separator ................ 29

Instruments and indicators............ 31Digital tachometer ......................... 31

Tachometer ...................................... 31


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Table of contents

Trim meter ........................................ 31Hour meter ....................................... 31Low oil pressure-alert indicator ........ 32Overheat-alert indicator.................... 32

Digital speedometer ...................... 32Speedometer.................................... 32Fuel gauge ....................................... 33Trip meter / Clock / Voltmeter........... 33Fuel level-alert indicator ................... 34Low battery voltage-alert indicator ... 34

Fuel management meter ............... 34Fuel flow meter................................. 34Fuel consumption meter /

Fuel economy meter / Twin engine speed synchronizer ........... 35

Water separator-alert indicator......... 37Command Link Multifunction

Meters ........................................ 37Command Link Multifunction

Tachometer ................................ 37Start-up checks ................................ 38Low oil pressure-alert ....................... 38Overheat alert................................... 39Water separator alert........................ 39Engine trouble alert .......................... 39Low battery voltage-alert .................. 40

Command Link Multifunction Speed & Fuel Meter ................... 40

Command Link Multifunction Speedometer.............................. 41

Command Link Multifunction Fuel Management Meter .................... 42

Engine control system.................... 43Alert system .................................. 43

Overheat alert................................... 43Low oil pressure alert ....................... 43

Installation .......................................45Installation ..................................... 45

Mounting the outboard motor ........... 45Operation ......................................... 47

First-time operation ....................... 47Fill engine oil .................................... 47Breaking in engine............................ 47

Getting to know your boat ................ 47Checks before starting engine ...... 47

Fuel level .......................................... 47Remove cowling ............................... 48Fuel system ...................................... 48Controls ............................................ 48Engine shut-off cord (lanyard) .......... 49Engine oil.......................................... 49Engine .............................................. 49Flushing device ................................ 49Install cowling ................................... 50Checking power trim and tilt

system........................................... 51Battery .............................................. 52

Filling fuel...................................... 52Operating engine .......................... 52

Sending fuel ..................................... 53Starting engine ................................. 53

Checks after starting engine ......... 54Cooling water ................................... 54

Warming up engine....................... 55Electric start models ......................... 55

Checks after engine warm up ....... 55Shifting ............................................. 55Stop switches ................................... 55

Shifting .......................................... 55Stopping boat................................ 56Stopping engine............................ 56

Procedure......................................... 56Trimming outboard motor.............. 57

Adjusting trim angle (Power trim and tilt) ....................... 57

Adjusting boat trim............................ 58Tilting up and down....................... 59

Procedure for tilting up (power trim and tilt models)........... 59

Procedure for tilting down (power trim and tilt models)........... 61

Shallow water................................ 61Power trim and tilt models ................ 61


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Table of contents

Cruising in other conditions........... 62Maintenance..................................... 63

Transporting and storing outboard motor .......................................... 63Storing outboard motor..................... 63Procedure......................................... 64Lubrication........................................ 65Cleaning and anticorrosion

measures ...................................... 65Flushing power unit .......................... 65Cleaning the outboard motor............ 66Checking painted surface of

outboard motor.............................. 66Periodic maintenance.................... 66

Replacement parts ........................... 67Maintenance interval guidelines ....... 67Maintenance chart 1......................... 68Maintenance chart 2......................... 70Greasing........................................... 71Cleaning and adjusting spark plug ... 73Inspecting idle speed........................ 74Changing engine oil.......................... 74Inspecting wiring and connectors ..... 76Checking propeller ........................... 76Removing propeller .......................... 77Installing propeller ............................ 77Changing gear oil ............................. 78Inspecting and replacing anode(s) ... 81Checking battery

(for electric start models) .............. 82Connecting the battery ..................... 82Disconnecting the battery................. 84

Trouble Recovery............................ 85Troubleshooting ............................ 85Temporary action in emergency.... 88

Impact damage................................. 88Running single engine

(twin engines)................................ 88Replacing fuse.................................. 89Power trim and tilt will not operate ... 90Water separator-alert indicator

blinks while cruising ...................... 90

Treatment of submerged motor .... 92Consumer information ................... 93

YAMAHA FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY .............................. 93

IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE U.S.A. OR CANADA .................. 95


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1

Safety informationEMU33622

Outboard motor safetyObserve these precautions at all times.EMU36501

PropellerPeople can be injured or killed if they come incontact with the propeller. The propeller cankeep moving even when the motor is in neu-tral, and sharp edges of the propeller can cuteven when stationary.● Stop the engine when a person is in the wa-

ter near you.● Keep people out of reach of the propeller,

even when the engine is off.EMU33630

Rotating partsHands, feet, hair, jewelry, clothing, PFDstraps, etc. can become entangled with inter-nal rotating parts of the engine, resulting in se-rious injury or death.Keep the top cowling in place whenever pos-sible. Do not remove or replace the cowlingwith the engine running.Only operate the engine with the cowling re-moved according to the specific instructions inthe manual. Keep hands, feet, hair, jewelry,clothing, PFD straps, etc. away from any ex-posed moving parts.EMU33640

Hot partsDuring and after operation, engine parts arehot enough to cause burns. Avoid touchingany parts under the top cowling until the en-gine has cooled.EMU33650

Electric shockDo not touch any electrical parts while startingor operating the engine. They can causeshock or electrocution.EMU33660

Power trim and tiltBody parts can be crushed between the mo-tor and the clamp bracket when the motor istrimmed or tilted. Keep body parts out of this

area at all times. Be sure no one is in this areabefore operating the power trim and tilt mech-anism.The power trim and tilt switches operate evenwhen the main switch is off. Keep people beaway from the switches whenever workingaround the motor.Never get under the lower unit while it is tilted,even when the tilt support lever is locked. Se-vere injury could occur if the outboard motoraccidentally falls.EMU33671

Engine shut-off cord (lanyard)Attach the engine shut-off cord so that the en-gine stops if the operator falls overboard orleaves the helm. This prevents the boat fromrunning away under power and leaving peo-ple stranded, or running over people or ob-jects.Always attach the engine shut-off cord to asecure place on your clothing or your arm orleg while operating. Do not remove it to leavethe helm while the boat is moving. Do not at-tach the cord to clothing that could tear loose,or route the cord where it could become en-tangled, preventing it from functioning.Do not route the cord where it is likely to beaccidentally pulled out. If the cord is pulledduring operation, the engine will shut off andyou will lose most steering control. The boatcould slow rapidly, throwing people and ob-jects forward.EMU33810

GasolineGasoline and its vapors are highly flam-mable and explosive. Always, refuel accord-ing to the procedure on page 52 to reduce therisk of fire and explosion.EMU33820

Gasoline exposure and spillsTake care not to spill gasoline. If gasolinespills, wipe it up immediately with dry rags.Dispose of rags properly.


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Safety information

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If any gasoline spills onto your skin, immedi-ately wash with soap and water. Changeclothing if gasoline spills on it.If you swallow gasoline, inhale a lot of gaso-line vapor, or get gasoline in your eyes, getimmediate medical attention. Never siphonfuel by mouth.EMU33900

Carbon monoxideThis product emits exhaust gases which con-tain carbon monoxide, a colorless, odorlessgas which may cause brain damage or deathwhen inhaled. Symptoms include nausea,dizziness, and drowsiness. Keep cockpit andcabin areas well ventilated. Avoid blocking ex-haust outlets.EMU33780

ModificationsDo not attempt to modify this outboard motor.Modifications to your outboard motor may re-duce safety and reliability, and render the out-board unsafe or illegal to use.EMU33740

Boating safetyThis section includes a few of the many im-portant safety precautions that you should fol-low when boating.EMU33710

Alcohol and drugsNever operate after drinking alcohol or takingdrugs. Intoxication is one of the most commonfactors contributing to boating fatalities.EMU33720

Personal flotation devicesHave an approved personal flotation device(PFD) on board for every occupant. Yamaharecommends that you must wear a PFDwhenever boating. At a minimum, childrenand non-swimmers should always wearPFDs, and everyone should wear PFDs whenthere are potentially hazardous boating condi-tions.

EMU33731

People in the waterAlways watch carefully for people in the wa-ter, such as swimmers, skiers, or divers,whenever the engine is running. When some-one is in the water near the boat, shift intoneutral and stop the engine.Stay away from swimming areas. Swimmerscan be hard to see.The propeller can keep moving even whenthe motor is in neutral. Stop the engine whena person is in the water near you.EMU33751

PassengersConsult your boat manufacturer’s instructionsfor details about appropriate passenger loca-tions in your boat and be sure all passengersare positioned properly before acceleratingand when operating above an idle speed.Standing or sitting in non-designated loca-tions may result in being thrown either over-board or within the boat due to waves, wakes,or sudden changes in speed or direction.Even when people are positioned properly,alert your passengers if you must make anyunusual maneuver. Always avoid jumpingwaves or wakes.EMU33760

OverloadingDo not overload the boat. Consult the boat ca-pacity plate or boat manufacturer for maxi-mum weight and number of passengers. Besure that weight is properly distributed ac-cording to the boat manufacturers instruc-tions. Overloading or incorrect weightdistribution can compromise the boats han-dling and lead to an accident, capsizing orswamping.EMU33772

Avoid collisionsScan constantly for people, objects, and otherboats. Be alert for conditions that limit yourvisibility or block your vision of others.


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Safety information

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Operate defensively at safe speeds and keepa safe distance away from people, objects,and other boats.● Do not follow directly behind other boats or

waterskiers.● Avoid sharp turns or other maneuvers that

make it hard for others to avoid you or un-derstand where you are going.

● Avoid areas with submerged objects orshallow water.

● Ride within your limits and avoid aggressivemaneuvers to reduce the risk of loss of con-trol, ejection, and collision.

● Take early action to avoid collisions. Re-member, boats do not have brakes, andstopping the engine or reducing throttle canreduce the ability to steer. If you are notsure that you can stop in time before hittingan obstacle, apply throttle and turn in anoth-er direction.

EMU33790

WeatherStay informed about the weather. Checkweather forecasts before boating. Avoid boat-ing in hazardous weather.EMU44160

Accident reportingBoat operators are required by law to file aBoating Accident Report with their boating lawenforcement agency if their boat is involved inany of the following accidents:1. There is loss of life or probable loss of life.

2. There is personal injury that requiresmedical attention beyond first aid.

3. There is property damage to boats or oth-er property over a certain amount.

4. There is complete loss of a boat.Contact local law enforcement personnel if areport is necessary.EMU44170

Boat education and trainingFor U.S.A.Operators should take a boating safetycourse. This may be required in your state.Many of the organizations listed in the nextsection can provide information about cours-es in your area.You may also want to consider an Internet-based program for basic boater education.The Online Boating Safety Course providedby the BoatU.S. Foundation, is approved bythe National Association of State Boating LawAdministrators (NASBLA) and recognized bythe United States Coast Guard. Most, but notall, states accept this course to meet theirminimum requirements. While it cannot re-place an in-depth course such as one offeredby the U.S. Coast Guard, U.S. Power Squad-ron, or other organization, this online coursedoes provide a general overview of the basicsin boating safety, requirements, navigation,and operation. Upon successful completion ofthe course, the user can download a certifi-cate of completion immediately or, for a smallcharge, request one by mail. To take this freecourse, go to boatus.org.For CanadaAll operators of pleasure craft must illustratecompetency by means of a Pleasure CraftOperators Card with the exception of Person-al Water Craft used for rental purposes whichrequire a rental checklist be completed. Plea-sure Craft Operators Cards can be obtainedfollowing the completion of a competency

ZMU06025


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Safety information

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course, with an on-line option. Details can befound on Transport Canada’s website.www.tc.gc.caEMU33880

Passenger trainingMake sure at least one other passenger istrained to operate the boat in the event of anemergency.EMU33890

Boating safety publicationsBe informed about boating safety. Additionalpublications and information can be obtainedfrom many boating organizations.EMU33590

Laws and regulationsKnow the marine laws and regulations whereyou will be boating- and obey them. Severalsets of rules prevail according to geographiclocation, but all are basically the same as theInternational Rules of the Road. The rulespresented in the following section are con-densed- and have been provided for yourconvenience only.Contact the U.S. Coast Guard, the NationalAssociation of State Boating Law Administra-tors, or your local Power Squadron for a com-plete set of rules governing the waters inwhich you will be using your boat.EMU44180

Boating organizationsThe following organizations provide boatingsafety training and information about boatingsafety and laws.

In the U.S.A.United States Coast GuardConsumer Affairs Staff (G-BC)Office of Boating, Public, and Consumer Af-fairsU.S. Coast Guard HeadquartersWashington, D.C. 20593-0001http://www.uscgboating.org/

United States Power Squadrons1-888-FOR-USPS (1-888-367-8777)http://www.usps.org/

Boat Owners Association of The UnitedStates1-800-336-BOAT (1-800-336-2628)http://www.boatus.com/

National Association of State Boating LawAdministrators (NASBLA)1500 Leestown Road, Suite 330Lexington, KY 40511 859-225-9497http://www.nasbla.org/

National Marine Manufacturers Associa-tion (NMMA)200 East Randolph DriveSuite 5100Chicago, IL 60601http://www.nmma.org/

Marine Retailers Association of America155 N. Michigan Ave. Chicago,IL 60304http://www.mraa.com/

In the CanadaNational Marine Manufacturers Associa-tion Canada14 McEwan DriveSuite 8Bolton, ONL7E 1H1http://www.nmma.org/


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Safety information

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EMU33691

Basic boating rules (Rules of the road)

Just as there are rules that apply when youare driving on streets and highways, there arewaterway rules that apply when you are driv-ing your boat. These rules are used interna-tionally. (For U.S.A.: and are also enforced bythe United States Coast Guard and localagencies.) You should be aware of theserules, and follow them whenever you encoun-ter another vessel on the water.EMU33700

Steering and sailing rules and sound signalsWhenever two vessels on the water meet oneanother, one vessel has the right-of-way; it iscalled the “stand-on” vessel. The vessel thatdoes not have the right-of-way is called the“give-way” or “burdened”vessel. These rulesdetermine which vessel has the right-of-way,and what each vessel should do.

Stand-on vesselThe vessel with the right-of-way has the dutyto continue its course and speed, except toavoid an immediate collision. When you main-tain your direction and speed, the other vesselwill be able to determine how best to avoidyou.

Give-way vesselThe vessel that does not have the right-of-way has the duty to take positive and timelyaction to stay out of the way of the Stand-Onvessel. Normally, you should not cross in frontof the vessel with the right-of-way. You shouldslow down or change directions briefly andpass behind the other vessel. You should al-ways move in such a way that the operator ofthe other vessel can see what you are doing.

“ The general prudential rule ”This rule is called Rule 2 in the InternationalRules and says,“ In obeying and construing these rules dueregard shall be had to all dangers of naviga-tion and collision, and to any special circum-stances, which may render a departure fromthe above rules necessary in order to avoidimmediate danger.”In other words, follow the standard rules ex-cept when a collision will occur unless bothvessels try to avoid each other. If that is thecase, both vessels become “ Give-Way ” ves-sels.EMU25521

Rules when encountering vesselsThere are three main situations that you mayencounter with other vessels which could leadto a collision unless the Steering Rules are fol-lowed:Meeting: (you are approaching another ves-sel head-on)Crossing: (you are traveling across the othervessel’s path)Overtaking: (you are passing or beingpassed by another vessel)In the following illustration, your boat is in thecenter. You should give the right-of-way toany vessels shown in white area (you are theGive-Way vessel). Any vessels in the shadedarea must yield to you (they are the Give-Wayvessels). Both you and the meeting vesselmust alter course to avoid each other.


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Safety information

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MeetingIf you are meeting another power vessel headon, and are close enough to run the risk of col-lision, neither of you has the right-of-way Bothof you should alter course to avoid an acci-dent. You should keep the other vessel onyour port (left) side. This rule doesn’t apply ifboth of you will clear one another if you con-tinue on your set course and speed.

CrossingWhen two power driven vessels are crossingeach other’s path close enough to run the riskof collision, the vessel which has the other onthe starboard (right) side must keep out of theway of the other. If the other vessel is on yourright, you must keep out of its way; you are theGive-Way vessel. If the other vessel is onyour port (left) side, remember that youshould maintain course and direction, provid-ed the other vessel gives you the right-of-wayas it should.

OvertakingIf you are passing another vessel, you are the“Give-Way” vessel. This means that the othervessel is expected to maintain its course andspeed. You must stay out of its way until youare clear of it. Likewise, if another vessel ispassing you, you should maintain your speedand direction so that the other vessel cansteer itself around you.EMU25531

Other special situationsThere are three other rules you should beaware of when driving your boat around othervessels.Narrow channels and bendsWhen navigating in narrow channels, youshould keep to the right when it is safe andpractical to do so. If the operator of a power-driven vessel is preparing to go around abend that may obstruct the view of other watervessels, the operator should sound a pro-longed blast on the whistle (4 to 6 seconds). Ifanother vessel is around the bend, it tooshould sound the whistle. Even if no reply isheard, however, the vessel should still pro-ceed around the bend with caution. If you nav-igate such waters with your boat, you willneed to carry a portable air horn, availablefrom local marine supply stores.


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Safety information

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Fishing vessel right-of-wayAll vessels that are fishing with nets, lines ortrawls are considered to be “fishing vessels”under the International Rules. Vessels withtrolling lines are not considered fishing ves-sels. Fishing vessels have the right-of-way re-gardless of position. Fishing vessels cannot,however, impede the passage of other ves-sels in narrow channels.Sailing vessel right-of-waySailing vessels should normally be given theright-of-way. The exceptions to this are:1. When the sailing vessel is overtaking the

power-driven vessel, the power-drivenvessel has the right-of-way.

2. Sailing vessels should keep clear of anyfishing vessel.

3. In a narrow channel, a sailing vesselshould not hamper the safe passage of apower-driven vessel that can navigateonly in such a channel.

Reading buoys and other markersThe waters of the United States are markedfor safe navigation by the lateral system ofbuoyage. Simply put, buoys and markershave an arrangement of shapes, colors, num-bers and lights to show which side of the buoya boater should pass on when navigating in aparticular direction. The markings on thesebuoys are oriented from the perspective of be-ing entered from seaward (the boater is goingtowards the port). This means that red buoysare passed on the starboard (right) side whenproceeding from open water into port, andblack buoys are to port (left) side. When navi-gating out of port, your position with respect tothe buoys should be reversed; red buoysshould be to port and black buoys to star-board.

Many bodies of water used by boaters are en-tirely within the boundaries of a particularstate. The Uniform State Waterway MarkingSystem has been devised for these waters.This system uses buoys and signs with dis-tinctive shapes and colors to show regulatoryor advisory information. These markers arewhite with black letters and orange boarders.They signify speed zones, restricted areas,danger areas, and general information.Remember, markings may vary by geograph-ic location. Always consult local boating au-thorities before driving your boat in unfamiliarwaters.


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Safety information

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ZMU01708


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General information

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EMU25171

Identification numbers recordEMU25184

Outboard motor serial numberThe outboard motor serial number is stampedon the label attached to the port side of theclamp bracket.Record your outboard motor serial number inthe spaces provided to assist you in orderingspare parts from your Yamaha dealer or forreference in case your outboard motor is sto-len.

EMU25191

Key numberIf a main key switch is equipped with the mo-tor, the key identification number is stampedon your key as shown in the illustration.Record this number in the space provided forreference in case you need a new key.

1. Outboard motor serial number location

1. Key number


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General information

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EMU33523

Read manuals and labelsBefore operating or working on this outboard motor:● Read this manual.● Read any manuals supplied with the boat.● Read all labels on the outboard motor and the boat.If you need any additional information, contact your Yamaha dealer.EMU33832

Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements.F200, LF200, F225, LF225, F250, LF250


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General information

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EMU34651

Contents of labelsThe above warning labels mean as follows.1

WARNINGEWM01681

● Keep hands, hair, and clothing awayfrom rotating parts while the engine isrunning.

● Do not touch or remove electrical partswhen starting or during operation.

2

WARNINGEWM01671

● Read Owner’s Manuals and labels.● Wear an approved personal flotation de-

vice (PFD).

● Attach engine shut-off cord (lanyard) toyour PFD, arm, or leg so the enginestops if you accidentally leave the helm,which could prevent a runaway boat.

1 2

ZMU06191


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General information

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EMU33843

SymbolsThe following symbols mean as follows.

Notice/Warning

Read Owner’s Manual

Hazard caused by continuous rotation

Electrical hazard

Remote control lever/gear shift lever operat-ing direction, dual direction

Engine start/ Engine cranking

ZMU05696

ZMU05664

ZMU05665

ZMU05666

ZMU05667

ZMU05668


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Specifications and requirements

13

EMU34521

SpecificationsTIP:“(AL)” stated in the specification data belowrepresents the numerical value for the alumi-num propeller installed.Likewise, “(SUS)” represents the value forstainless steel propeller installed and “(PL)”for plastic propeller installed.EMU2821P

Dimension:Overall length:

868 mm (34.2 in)Overall width:

634 mm (25.0 in)Overall height X:

1829 mm (72.0 in)Overall height U:

F250A 1956 mm (77.0 in)LF250A 1956 mm (77.0 in)

Motor transom height X:643 mm (25.3 in)

Motor transom height U:F250A 770 mm (30.3 in)LF250A 770 mm (30.3 in)

Dry weight (SUS) X:F200A 284 kg (625 lb)F225A 284 kg (625 lb)F250A 284 kg (626 lb)LF200A 284 kg (625 lb)LF225A 284 kg (625 lb)LF250A 284 kg (625 lb)

Dry weight (SUS) U:F250A 290 kg (639 lb)LF250A 290 kg (639 lb)

Performance:Full throttle operating range:

5000–6000 r/min

Rated power:F200A 147.1 kW (200 HP)F225A 165.5 kW (225 HP)F250A 183.9 kW (250 HP)LF200A 147.1 kW (200 HP)LF225A 165.5 kW (225 HP)LF250A 183.9 kW (250 HP)

Idle speed (in neutral):600-700 r/min

Engine:Type:

4-stroke DOHC V6 24valvesDisplacement:

3352 cm³ (113.3 US oz, 118.2 Imp.oz)Bore × stroke:

94.0 × 80.5 mm (3.70 × 3.17 in)Ignition system:

TCISpark plug (NGK):

LFR6A-11Spark plug gap:

1.0–1.1 mm (0.039–0.043 in)Control system:

Remote controlStarting system:

Electric starterStarting carburetion system:

Electronic fuel injectionValve clearance IN (cold engine):

0.17–0.24 mm (0.0067–0.0094 in)Valve clearance EX (cold engine):

0.31–0.38 mm (0.0122–0.0150 in)Min. cold cranking amps (CCA/SAE):

512 AMin. marine cranking amps (MCA/ABYC):

675 AMin. reserve capacity (RC/SAE):

182 minutesMaximum generator output:

44 A


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14

Drive unit:Gear shift positions:

Forward-neutral-reverseGear ratio:

2.00(30/15)Trim and tilt system:

Power trim and tiltPropeller mark:

F200A M/TF225A M/TF250A M/TLF200A ML/TLLF225A ML/TLLF250A ML/TL

Fuel and oil:Recommended fuel:

F200A Regular unleaded gasolineF225A Regular unleaded gasolineF250A Premium unleaded gasolineLF200A Regular unleaded gasolineLF225A Regular unleaded gasolineLF250A Premium unleaded gasoline

Min. pump octane number:F200A 86F225A 86F250A 89LF200A 86LF225A 86LF250A 89

Recommended engine oil:YAMALUBE 4-M FC-W or 4-stroke outboard motor oil

Recommended engine oil grade 1:SAE 10W-30/10W-40/5W-30 API SE/SF/SG/SH/SJ/SL

Engine oil quantity (without oil filter replacement):

4.5 L (4.76 US qt, 3.96 Imp.qt)Engine oil quantity (with oil filter replacement):

4.7 L (4.97 US qt, 4.14 Imp.qt)

Lubrication system:Wet sump

Recommended gear oil:Hypoid gear oil

Recommended gear oil grade:SAE 90 API GL-4

Gear oil quantity:F200A 1.150 L (1.216 US qt, 1.012 Imp.qt)F225A 1.150 L (1.216 US qt, 1.012 Imp.qt)F250A 1.150 L (1.216 US qt, 1.012 Imp.qt)LF200A 1.000 L (1.057 US qt, 0.880 Imp.qt)LF225A 1.000 L (1.057 US qt, 0.880 Imp.qt)LF250A 1.000 L (1.057 US qt, 0.880 Imp.qt)

Tightening torque for engine:Spark plug:

25 Nm (2.55 kgf-m, 18.4 ft-lb)Propeller nut:

55 Nm (5.61 kgf-m, 40.6 ft-lb)Engine oil drain bolt:

28 Nm (2.86 kgf-m, 20.7 ft-lb)Engine oil filter:

18 Nm (1.84 kgf-m, 13.3 ft-lb)EMU33554

Installation requirementsEMU33564

Boat horsepower rating

WARNINGEWM01560

Overpowering a boat can cause severe in-stability.

Before installing the outboard motor(s), con-firm that the total horsepower of your out-board motor(s) does not exceed the boatsmaximum horsepower rating. See the boat’scapacity plate or contact the manufacturer.


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15

EMU33571

Mounting motor

WARNINGEWM01570

● Improper mounting of the outboard mo-tor could result in hazardous conditionssuch as poor handling, loss of control,or fire hazards.

● Because the motor is very heavy, spe-cial equipment and training is requiredto mount it safely.

Your dealer or other person experienced inproper rigging should mount the motor usingcorrect equipment and complete rigging in-structions. For further information, see page45.EMU33581

Remote control requirements

WARNINGEWM01580

● If the engine starts in gear, the boat canmove suddenly and unexpectedly, pos-sibly causing a collision or throwingpassengers overboard.

● If the engine ever starts in gear, thestart-in-gear protection device is notworking correctly and you should dis-continue using the outboard. Contactyour Yamaha dealer.

The remote control unit must be equippedwith a start-in-gear protection device(s). Thisdevice prevents the engine from starting un-less it is in neutral.EMU25694

Battery requirementsEMU25713

Specifications of BatteryUse a fully charged battery that meets the fol-lowing specifications. The engine cannot bestarted if battery voltage is too low.

NOTICEECM01061

Do not use a battery that does not meet thespecified capacity. If a battery that doesnot meet specifications is used, the elec-tric system could perform poorly or beoverloaded, causing electric system dam-age.

EMU36290

Mounting batteryMount the battery holder securely in a dry,well-ventilated, vibration-free location in theboat. WARNING! Do not put flammableitems, or loose heavy or metal objects inthe same compartment as the battery.Fire, explosion or sparks could result.[EWM01820]

EMU36300

Multiple batteriesTo connect multiple batteries, such as for mul-tiple engine configurations or for an accessorybattery, consult your Yamaha dealer aboutbattery selection and correct wiring.EMU41600

Propeller selectionNext to selecting an outboard motor, selectingthe right propeller is one of the most importantpurchasing decisions a boater can make. Thetype, size, and design of your propeller havea direct impact on acceleration, top speed,fuel economy, and even engine life. Yamahadesigns and manufactures propellers for ev-ery Yamaha outboard motor and every appli-cation.

Minimum cold cranking amps (CCA/SAE):

512 AMinimum marine cranking amps (MCA/ABYC):

675 AMinimum reserve capacity (RC/SAE):

182 minutes


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Your Yamaha dealer can help you select theright propeller for your boating needs. Selecta propeller that will allow the engine to reachthe middle or upper half of the operatingrange at full throttle with the maximum boat-load. Generally, select a larger pitch propellerfor a smaller operating load and a smallerpitch propeller for a heavier load. If you carryloads that vary widely, select the propeller thatlets the engine run in the proper range for yourmaximum load but remember that you mayneed to reduce your throttle setting to staywithin the recommended engine speed rangewhen carrying lighter loads.Yamaha recommends to use a propeller suit-able for the “Shift Dampener System (SDS)”.For further information, consult your Yamahadealer.To check the propeller, see page 76.

EMU36310

Counter rotation modelsStandard outboard motors rotate clockwise.Counter rotation models rotate counterclock-wise. Counter rotation models are typicallyused in multiple motor setups and are markedwith an “L” on the gear case above the anti-ventilation plate.

On counter rotation models, be sure to use apropeller intended for counterclockwise rota-tion. These propellers are identified with theletter “L” after the size indication on the pro-peller. WARNING! Never use a standardpropeller with a counter rotation motor, ora counter rotation propeller with a stan-dard motor. Otherwise the boat could goin the direction opposite of that expected(for example, reverse instead of forward),which could lead to an accident. [EWM01810]

For instructions on propeller removal and in-stallation, see page 77 and 77.EMU25770

Start-in-gear protectionYamaha outboard motors or Yamaha-ap-proved remote control units are equipped withstart-in-gear protection device(s). This featurepermits the engine to be started only when itis in neutral. Always select neutral beforestarting the engine.EMU41952

Engine oil requirementsSelect an oil grade according to the averagetemperatures in the area where the outboardmotor will be used.

1. Propeller diameter in inches2. Propeller pitch in inches3. Type of propeller (propeller mark)

ZMU07044

3 1

2Recommended engine oil:

YAMALUBE 4-M FC-W or 4-stroke outboard motor oil

Recommended engine oil grade 1:SAE 10W-30/10W-40/5W-30 API SE/SF/SG/SH/SJ/SL

Recommended engine oil grade 2:SAE 15W-40/20W-40/20W-50 API SH/SJ/SLEngine oil quantity (without oil filter re-placement):

4.5 L (4.76 US qt, 3.96 Imp.qt)Engine oil quantity (with oil filter re-placement):

4.7 L (4.97 US qt, 4.14 Imp.qt)


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If oil grades listed under Recommended en-gine oil grade 1 are not available, select an al-ternative oil grade listed underRecommended engine oil grade 2.Recommended engine oil grade 1

Recommended engine oil grade 2

EMU36360

Fuel requirementsEMU41331

GasolineUse a good quality gasoline that meets theminimum octane requirement. If knocking orpinging occurs, use a different brand of gaso-line or premium unleaded fuel. Yamaha rec-ommends that you use alcohol-free gasoline(see Gasoline with Ethanol) whenever possi-ble.The use of a poor quality gasoline may resultin starting and running problems. If you en-counter drivability problems, which you sus-pect could be related to the fuel you are using,we recommend that you switch to a recog-nized high quality brand of gasoline, such as

a gasoline that is advertised as Top Tier De-tergent Gasoline. Failure to comply with theserecommendations may also result in un-scheduled maintenance, fuel system dam-age, and internal engine damage.

NOTICEECM01981

● Do not use leaded gasoline. Leaded gas-oline can seriously damage the engine.

● Avoid getting water and contaminants inthe fuel tank. Contaminated fuel cancause poor performance or engine dam-age. Use only fresh gasoline that hasbeen stored in clean containers.

Gasoline with EthanolTwo types of gasoline are commonly avail-able in the U.S.A. and Canada for use in au-tomobiles and boats: conventional gasolinewithout Ethanol and gasoline with Ethanol,which is typically referred to as E10 gasoline.According to federal regulations, E10 gaso-line may contain up to 10% Ethanol.A high quality gasoline without Ethanol is thepreferred fuel for your Yamaha outboard mo-tor. However, if gasoline with Ethanol is theonly fuel available in your area, your Yamahaoutboard motor is calibrated to run properly

ZMU06854

122˚F

50˚C

104

40

86

30

68

SAE API

SESFSGSHSJSL

20

50

10

32

0

14

-10

-4

-20

10W–30

10W–40

5W–30

ZMU06855

122˚F

50˚C

104

40

86

30

68

SAE API

SHSJSL

20

50

10

32

0

14

-10

-4

-20

15W–40

20W–40

20W–50

Recommended fuel:F200A Regular unleaded gasolineF225A Regular unleaded gasolineF250A Premium unleaded gasolineLF200A Regular unleaded gasolineLF225A Regular unleaded gasolineLF250A Premium unleaded gasoline

Min. pump octane number:F200A 86F225A 86F250A 89LF200A 86LF225A 86LF250A 89


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on fresh E10 gasoline that meets the mini-mum octane requirement specified for thismodel.

NOTICEECM02401

Never use a gasoline for your outboardmotor that contains more than 10% Etha-nol, such as E15 which contains 15% Eth-anol or E85 which contains 85% Ethanol,or gasoline containing any amount ofMethanol. These fuels can cause startingand running problems, as well as seriousfuel system and internal engine damage.

Gasoline containing ethanol has severalproperties that may cause boat fuel systemproblems.● Ethanol is a strong solvent (cleaning agent)

that can clean gum and varnish depositsfrom a boat’s fuel system, particularly in old-er boats, as well as tanks and pipes used ingasoline distribution. These released de-posits contaminate the fuel and can causeproblems, such as clogged fuel filters, car-buretors, or fuel injectors, which could re-sult in engine damage.

● Ethanol may dissolve resins used in theconstruction of fiberglass fuel tanks. Thedissolved resins contaminate the fuel andcan cause problems, such as clogged fuelfilters, carburetors, or fuel injectors, whichcould result in engine damage.

● Ethanol is hygroscopic (has a strong attrac-tion to water). Therefore, any water that in-advertently enters the fuel system,including moisture that is absorbed from theair, will mix with the ethanol in the gasoline.If the amount of water is excessive, the eth-anol and water mixture will separate fromthe gasoline in a layer at the bottom of the

fuel tank. This ethanol and water mixture isvery corrosive to aluminum fuel tanks andfuel system components.

● The usable life span of E10 gasoline maybe shorter than the normal length of off-sea-son boat storage, causing starting and run-ning problems related to stale fuel.

For more information on using fuel containingethanol, visit: http://www.yamaha-motor.comGasoline FiltrationYamaha outboard motors are equipped withinternal fuel filters. However, excessive wateror debris entering your engine’s fuel systemcould prematurely clog the internal filters,causing starting and running problems, fuelsystem damage, and internal engine damage.Therefore, it is recommended that an external10-micron water-separating fuel filter be in-stalled on your boat and serviced frequently.Consult your authorized Yamaha dealer for a10-micron filter that meets your engine’s re-quirements.EMU41340

Gasoline AdditivesGasoline blends change to meet automobileemission regulations and economic condi-tions. Additives, added by gasoline distribu-tors, necessary for proper automobile engineoperation and durability, may not be sufficientfor typical boat applications. Intake valve andcombustion chamber deposits may accumu-late in boat engines more rapidly than en-countered in automotive use. In addition,gasoline used for boating will typically agelonger between refills than gasoline used inautomobiles, resulting in stale and unusablegasoline that may cause starting and runningproblems, fuel system damage, and internalengine damage.Yamaha recommends the use of two Ya-malube gasoline additives to reduce internaldeposits and extend the storage life of gaso-


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19

line. Continuous use of Yamalube Ring FreeFuel Additive Plus reduces harmful internaldeposits. Yamalube Fuel Stabilizer & Condi-tioner Plus added to fresh gasoline will helpprotect the fuel system from varnishing whilehelping to keep the gasoline’s octane levelfrom decreasing excessively during storage.Other additives may also be available on themarket that may have varying degrees of ef-fectiveness. Consult your Yamaha dealerconcerning what may work best for the locallyavailable gasoline and environmental condi-tions.EMU36880

Muddy or acidic waterYamaha strongly recommends that you haveyour dealer install the optional chromium-plat-ed water pump kit if you use the outboard mo-tor in muddy or acidic water conditions.However, depending on the model it might notbe required.EMU41350

Anti-fouling paintA clean hull is required to maintain your boat’sperformance. Boats moored in the watershould be protected from marine growth (bar-nacles, mussels, and marine plants). If ap-proved by regulations for your area, thebottom of the hull can be coated with an anti-fouling paint to inhibit marine growth.Anti-fouling paints specifically formulated foruse on aluminum may be applied to the out-board motor. The original Yamaha paint sur-face may be scuffed lightly before applyinganti-fouling paint, but do not remove the origi-nal paint. Removal of the original paint will in-crease the rate of corrosion.

NOTICEECM02410

Anti-fouling paint for fiberglass and woodmay contain materials, such as copper,graphite, and tin, that can cause corrosion

if applied to aluminum boats and outboardmotor components. Never apply thesetypes of paint to your outboard motor be-cause rapid corrosion damage could oc-cur.

Sacrificial anodes are attached to the out-board motor to provide corrosion protectionand must never be painted.

NOTICEECM02420

Painted sacrificial anodes will not providecorrosion protection.

EMU36341

Motor disposal requirementsNever illegally discard (dump) the motor.Yamaha recommends consulting the dealerabout discarding the motor.EMU36352

Emergency equipmentKeep the following items onboard in casethere is trouble with the outboard motor.● A tool kit with assorted screwdrivers, pliers,

wrenches (including metric sizes), andelectrical tape.

● Waterproof flashlight with extra batteries.● An extra engine shut-off cord (lanyard) with

clip.● Spare parts, such as an extra set of spark

plugs.Consult your Yamaha dealer for details.EMU25222

Emission control information EMU25230

North American modelsThis engine conforms to U.S. EnvironmentalProtection Agency (EPA) regulations for ma-rine SI engines. See the label affixed to yourengine for details.EMU31561

Approval label of emission control certifi-cateThis label is attached to the bottom cowling.


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New Technology; (4-stroke) MFI

EMU25263

Manufactured date labelThis label is attached to the clamp bracket orthe swivel bracket.

EMU25274

Star labelsYour outboard motor is labeled with a Califor-nia Air Resources Board (CARB) star label.See below for a description of your particularlabel.

1. Approval label location

ZMU06895

EMISSION CONTROL INFORMATION MFITHIS ENGINE CONFORMS TO CALIFORNIA AND U.S. EPA EXHAUSTREGULATIONS FOR SI MARINE ENGINES. REFER TO THE OWNER'SMANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.MEETS U.S. EPA EVAP STANDARDS USING CERTIFIED COMPONENTS.FAMILY:DISPLACEMENT: litersSPARK PLUG:FUEL: GASOLINE

FELs(HC+NOx / CO): / g/kW-hr MAX POWER: kWIDLE SPEED: ± rpm IN NEUTRALSPARK PLUG GAP (mm):VALVE LASH (mm) IN: EX:

YAMAHA MOTOR CO.,LTD.

INFORMATION ANTIPOLLUTION MFICE MOTEUR EST CONFORME AUX NORMES D’ÉMISSIONS EPA DES É.-U. ET DE LACALIFORNIE POUR MOTEURS MARINS À ÉTINCELLE. POUR LES SPÉCIFICATIONS ET LESRÉGLAGES À EFFECTUER, CONSULTEZ LE MANUEL DU PROPRIÉTAIRE. INSTALLÉ AVECLES COMPOSANTS HOMOLOGUÉS, IL SATISFAIT AUX NORMES EVAP EPA DES É.-U.

YAMAHA MOTOR CO.,LTD.

FAMILLE :CYLINDRÉE : litreBOUGIE : CARBURANT : ESSENCE

FELs(HC+NOx / CO): / g/kW-h PUISS. MAX. : kWRALENTI : ± tr/mm AU POINT MORTBOUGIE-ÉCARTEMENT (mm) :JEU DE SOUPAPES (mm) ADM: ÉCH:

1. Manufactured date label location

1. Star labels location

Manufactured:

ZMU04346


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EMU40330

One Star—Low EmissionThe one-star label identifies engines thatmeet the Air Resources Board’s PersonalWatercraft and Outboard marine engine 2001exhaust emission standards. Engines meet-ing these standards have 75% lower emis-sions than conventional carbureted two-stroke engines. These engines are equivalentto the U.S. EPA’s 2006 standards for marineengines.

EMU40340

Two Stars—Very Low EmissionThe two-star label identifies engines that meetthe Air Resources Board’s Personal Water-craft and Outboard marine engine 2004 ex-haust emission standards. Engines meetingthese standards have 20% lower emissionsthan One Star-Low-Emission engines.

EMU40350

Three Stars—Ultra Low EmissionThe three-star label identifies engines thatmeet the Air Resources Board’s PersonalWatercraft and Outboard marine engine 2008exhaust emission standards or the Sterndriveand Inboard marine engine 2003-2008 ex-haust emission standards. Engines meetingthese standards have 65% lower emissionsthan One Star-Low-Emission engines.

EMU33861

Four Stars—Super Ultra Low EmissionThe four-star label identifies engines thatmeet the Air Resources Board’s Sterndriveand Inboard marine engine 2009 exhaustemission standards. Personal Watercraft andOutboard marine engines may also complywith these standards. Engines meeting thesestandards have 90% lower emissions thanOne Star-Low-Emission engines.

ZMU01702

ZMU01703

ZMU01704

ZMU05663


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Components

22

EMU2579Y

Components diagramTIP:* May not be exactly as shown; also may not be included as standard equipment on all models(order from dealer).F200, LF200, F225, LF225, F250, LF250

ZMU05148

12 13 14 15

16 17 18

1. Top cowling2. Anti-cavitation plate3. Trim tab (anode)4. Propeller*5. Cooling water inlet*6. Clamp bracket7. Cowling lock lever(s)8. Water separator9. Power trim and tilt switch10.Flushing device11.Tilt support lever12.Remote control box (binnacle mount type)*13.Switch panel (for use with binnacle type)*14.Remote control box (binnacle mount type)*15.Switch panel (for use with binnacle type)*

16.Digital speedometer*17.Digital tachometer*18.Fuel management meter*


©2019 Yamaha M


Components

23

EMU26181

Remote control boxThe remote control lever actuates both theshifter and the throttle. The electrical switchesare mounted on the remote control box.

1

4 6

32

5

ZMU05429

1. Tachometer unit (Square type)*2. Tachometer unit (Round type)*3. Speedometer unit (Square type)*4. Speed & fuel meter unit (Square type)*5. Speed & fuel meter unit (Round type)*6. Fuel management meter (Square type)*

1. Power trim and tilt switch2. Remote control lever3. Free accelerator4. Throttle friction adjuster

2

1

34

ZMU04572


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Components

24

EMU26190

Remote control leverMoving the lever forward from the neutral po-sition engages forward gear. Pulling the leverback from neutral engages reverse. The en-gine will continue to run at idle until the leveris moved about 35° (a detent can be felt).Moving the lever farther opens the throttle,and the engine will begin to accelerate.

EMU26233

Free acceleratorTo open the throttle without shifting into eitherforward or reverse, push the free acceleratorbutton and move the remote control lever.

TIP:● The free accelerator button can only be

pushed when the remote control lever is inthe neutral position.

● After the button is pushed, the throttle be-gins to open after the remote control lever ismoved at least 35°.

● After using the free accelerator, return theremote control lever to the neutral position.The free accelerator button will return auto-

1. Remote control lever2. Power trim and tilt switch3. Free accelerator4. Throttle friction adjuster

1. Neutral “ ”2. Forward “ ”3. Reverse “ ”4. Shift5. Fully closed6. Throttle7. Fully open

23

21

4

ZMU04569

N1F

7

6

2R

34 4

65

7

5

ZMU04573

1. Fully open2. Fully closed3. Free accelerator

1. Fully open2. Fully closed3. Free accelerator

N

ZMU04576

1

3

2

1

3

2

ZMU04575


©2019 Yamaha M


Components

25

matically to its set position. The remote con-trol will then engage forward and reversenormally.

EMU25976

Throttle friction adjusterA friction device provides adjustable resis-tance to movement of the throttle grip or theremote control lever, and can be set accord-ing to operator preference.To increase resistance, turn the adjusterclockwise. To decrease resistance, turn theadjuster counterclockwise. WARNING! Donot overtighten the friction adjuster. Ifthere is too much resistance, it could bedifficult to move the remote control leveror throttle grip, which could result in anaccident. [EWM00032]

When constant speed is desired, tighten theadjuster to maintain the desired throttle set-ting.

EMU25995

Engine shut-off cord (lanyard) and clipThe clip must be attached to the engine shut-off switch for the engine to run. The cordshould be attached to a secure place on theoperator’s clothing, or arm or leg. Should theoperator fall overboard or leave the helm, thecord will pull out the clip, stopping ignition tothe engine. This will prevent the boat fromrunning away under power. WARNING! At-tach the engine shut-off cord to a secureplace on your clothing, or your arm or legwhile operating. Do not attach the cord toclothing that could tear loose. Do not routethe cord where it could become entangled,preventing it from functioning. Avoid acci-dentally pulling the cord during normaloperation. Loss of engine power meansthe loss of most steering control. Also,without engine power, the boat could slowrapidly. This could cause people and ob-jects in the boat to be thrown forward.[EWM00122]

ZMU04563

ZMU04646

1. Cord2. Clip3. Engine shut-off switch

ZMU04565

12

3


©2019 Yamaha M


Components

26

EMU26091

Main switchThe main switch controls the ignition system;its operation is described below.● “ ” (off)With the main switch in the “ ” (off) posi-tion, the electrical circuits are off, and the keycan be removed.● “ ” (on)With the main switch in the “ ” (on) position,the electrical circuits are on, and the key can-not be removed.● “ ” (start)With the main switch in the “ ” (start) po-sition, the starter motor turns to start the en-gine. When the key is released, it returnsautomatically to the “ ” (on) position.

EMU32053

Power trim and tilt switch on remote controlThe power trim and tilt system adjusts the out-board motor angle in relation to the transom.Pushing the switch “ ” (up) trims the out-board motor up, and then tilts it up. Pushingthe switch “ ” (down) tilts the outboard motordown and trims it down. When the switch is re-leased, the outboard motor will stop in its cur-rent position. For instructions on using thepower trim and tilt switch, see pages 57 and59.

EMU26155

Power trim and tilt switch on bottom cowlingThe power trim and tilt switch is located on theside of the bottom cowling. Pushing the switch“ ” (up) trims the outboard motor up, andthen tilts it up. Pushing the switch “ ” (down)


ONSTARTOFF

ONSTARTOFF

1

2

3

ZMU05818

ONOFF START

ZMU04567

ONOFF START

ONOFF START

ZMU05821

UP

DNZMU03938


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Components

27

tilts the outboard motor down and trims itdown. When the switch is released, the out-board motor will stop in its current position.For instructions on using the power trim andtilt switch, see page 59.

WARNINGEWM01031

Use the power trim and tilt switch locatedon the bottom cowling only when the boatis at a complete stop with the engine off.Attempting to use this switch while theboat is moving could increase the risk offalling overboard and could distract theoperator, increasing the risk of collisionwith another boat or an obstacle.

EMU26163

Power trim and tilt switches (twin bin-nacle type)The power trim and tilt system adjusts the out-board motor angle in relation to the transom.Pushing the switch “ ” (up) trims the out-board motor up, and then tilts it up. Pressingthe switch “ ” (down) tilts the outboard motordown and trims it down. When the switch is re-leased, the outboard motor will stop in its cur-rent position. For instructions on using thepower trim and tilt switches, see pages 57 and59.

TIP:On the dual engine control, the switch on theremote control grip controls both outboardmotors at the same time.EMU26244

Trim tab with anode

WARNINGEWM00840

An improperly adjusted trim tab couldcause difficult steering. Always test run af-ter the trim tab has been installed or re-placed to be sure steering is correct. Besure you have tightened the bolt after ad-justing the trim tab.

The trim tab should be adjusted so that thesteering control can be turned to either theright or left by applying the same amount offorce.If the boat tends to veer to the left (port side),turn the trim tab rear end to the port side “A” inthe figure. If the boat tends to veer to the right(starboard side), turn the trim tab end to thestarboard side “B” in the figure.

NOTICEECM00840

The trim tab also serves as an anode toprotect the engine from electrochemicalcorrosion. Never paint the trim tab as it willbecome ineffective as an anode.

1. Power trim and tilt switch

ZMU04601

DN

UP

1


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Components

28

EMU26341

Tilt support lever for power trim and tilt modelTo keep the outboard motor in the tilted up po-sition, lock the tilt support lever to the clampbracket.

NOTICEECM00660

Do not use the tilt support lever or knobwhen trailering the boat. The outboard mo-tor could shake loose from the tilt supportand fall. If the motor cannot be trailered inthe normal running position, use an addi-tional support device to secure it in the tiltposition.

EMU31421

Cowling lock lever (pull up type)To remove the top cowling, pull up the cowlinglock lever(s) and lift off the cowling. To installthe top cowling, place it in its original position,and then move the cowling lock lever(s)downward to lock it in place.

TIP:● When installing the cowling, check to be

sure it fits properly in the rubber seal.

1. Trim tab2. Bolt3. Cap

Bolt tightening torque:42 Nm (4.28 kgf-m, 31.0 ft-lb)


©2019 Yamaha M


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29

● Be sure to check that the gap between thetop cowling and the bottom cowling is evenall around the cowling. If the top cowling isloose or the gap is not even, reinstall thecowling.

EMU26463

Flushing deviceThis device is used to clean the cooling waterpassages of the motor using a garden hoseand tap water.

TIP:For details on usage, see page 65.EMU33465

Fuel filter/Water separatorThis engine has a combination fuel filter/waterseparator and associated alert system. If wa-ter separated from the fuel exceeds a specificvolume, the alert device of Command LinkMultifunction Tachometer will activate.

Activation of alert device

1. Cowling lock lever(s)

1. Cowling lock lever(s)

ZMU05347

1

ZMU05349

11. Flushing device

ZMU07545


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30

● The water separator-alert indicator of Com-mand Link Multifunction Tachometer willblink.

● The buzzer will sound intermittently onlywhen the gear shift is in neutral.

● If the alert system has activated, stop theengine and consult a Yamaha dealer imme-diately.

TIP:Adding an in-line 10-micron fuel filter hasbeen show to greatly reduce the chance offuel contamination problems. Consult yourdealer for information about Yamaha 10-mi-cron fuel filters if your boat does not have one.


©2019 Yamaha M


Instruments and indicators

31

EMU31414

Digital tachometerThe tachometer shows the engine speed andhas the following functions.All segments of the display will light momen-tarily after the main switch is turned on andwill return to normal thereafter.

TIP:The water separator-alert indicator and en-gine trouble-alert indicator on the digital ta-chometer do not operate for this engine.EMU36050

TachometerThe tachometer displays engine speed inhundreds of revolutions per minute (r/min).For example, if the tachometer display reads“22” then the engine speed is 2200 r/min.EMU26621

Trim meterThis meter shows the trim angle of your out-board motor.● Memorize the trim angles that work best for

your boat under different conditions. Adjustthe trim angle to the desired using the pow-er trim and tilt switch.

● If the trim angle of your motor exceeds thetrim operating range, the top segment onthe trim meter display will blink.

EMU26651

Hour meterThis meter shows the number of hours the en-gine has been run. It can be set to show thetotal number of hours or the number of hoursfor the current trip. The display can also beturned on and off.

To change the display format, press the“ ” (mode) button. The display can showtotal hours or trip hours, or turn off.To reset the trip hours, simultaneously pressthe “ ” (set) and “ ” (mode) buttons formore than 1 second while the trip hours aredisplayed. This resets the trip counter to 0 (ze-ro).The total number of hours the engine hasbeen run cannot be reset.

1. Tachometer2. Trim meter3. Hour meter4. Low oil pressure-alert indicator5. Overheat-alert indicator6. Set button7. Mode button

ZMU01840

1

5

2

4

3

6 7

ZMU01740

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EMU26524

Low oil pressure-alert indicatorIf oil pressure drops too low, the alert indicatorwill start to blink. For further information, seepage 43.

NOTICEECM00022

● Do not continue to run the engine if thelow oil pressure-alert indicator is on andthe engine oil level is lower. Serious en-gine damage will occur.

● The low oil pressure-alert indicator doesnot indicate the engine oil level. Use theoil dipstick to check the remaining oilquantity. For further information, seepage 49.

EMU26583

Overheat-alert indicatorIf the engine temperature rises too high, thealert indicator will start to blink. For further in-formation on reading the indicator, see page43.

NOTICEECM00052

Do not continue to run the engine if theoverheat-alert indicator is on. Serious en-gine damage will occur.

EMU26602

Digital speedometerThis gauge shows the boat speed and otherinformation.

All segments of the display will light momen-tarily after the main switch is turned on andwill return to normal thereafter.EMU36061

SpeedometerThe speedometer displays km/h, mph, orknots, according to operator preference. Se-lect the desired units of measurement by set-ting the selector switch on the back of thegauge. See the illustration for settings.

1. Low oil pressure-alert indicator

ZMU017361

1. Overheat-alert indicator

1. Speedometer2. Fuel gauge3. Trip meter/clock/voltmeter4. Alert indicator(s)

ZMU01737

1


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33

EMU26713

Fuel gaugeEight segments indicate the fuel level. Whenall segments are showing, the fuel tank is full.

The fuel level reading can be inaccurate dueto the position of the sensor in the fuel tankand the attitude of the boat in the water. Oper-ation with bow-up trim or continuous turningcan give false readings.Do not adjust the selector switch for fuel sen-sor. Incorrectly setting the selector switch onthe gauge will give false readings. Consultyour Yamaha dealer on how to correctly setthe selector switch. NOTICE: Running out offuel can damage the engine. [ECM01770]

EMU36071

Trip meter / Clock / VoltmeterThe display shows either the trip meter, theclock, or the voltmeter.

To change the display, press the “ ”(mode) button repeatedly until the indicator onthe face of the gauge points to “ ” (tripmeter), “ ” (clock), or “ ” (voltmeter).EMU26691

Trip meterThis gauge displays the distance the boat hastraveled since the gauge was last reset.The trip distance is shown in kilometers ormiles depending upon the unit of measure-ment selected for the speedometer.To reset the trip meter to zero, press the “ ”(set) and “ ” (mode) buttons at the sametime.The trip distance is kept in memory by batterypower. The stored data will be lost if the bat-tery is disconnected.

EMU26701

ClockTo set the clock:1. Be sure the gauge is in the “ ” (time)

mode.2. Press the “ ” (set) button; the hour dis-

play will begin blinking.3. Press the “ ” (mode) button until the

desired hour is displayed.4. Press the “ ” (set) button again, the

minute display will begin blinking.5. Press the “ ” (mode) button until the

desired minute is displayed.6. Press the “ ” (set) button again to start

the clock.

1. Cap2. Selector switch (for speed unit)3. Selector switch (for fuel sensor)

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34

The clock operates on battery power. Discon-necting the battery will stop the clock. Resetthe clock after connecting the battery.EMU36080

VoltmeterThe voltmeter displays the charge of the bat-tery in volts(V).EMU26721

Fuel level-alert indicatorIf the fuel level decreases to one segment, thefuel level alert segment will blink.Do not continue to operate the engine with fullthrottle if an alert device has activated. Getback to the port within trolling engine speed.NOTICE: Running out of fuel can damagethe engine. [ECM01770]

EMU26732

Low battery voltage-alert indicatorIf battery voltage drops, the display will auto-matically turn on and blink.

Get back to the port soon if an alert device hasactivated. For charging the battery, consultyour Yamaha dealer.

EMU26741

Fuel management meterThe fuel management meter shows the stateof the fuel consumption while the engine isrunning.

All segments of the display will light momen-tarily after the main switch is turned on andwill return to normal thereafter.EMU26752

Fuel flow meterThe fuel flow meter displays the amount offuel flow over a one-hour period, at the currentrate of engine operation.

1. Fuel level-alert segment

1. Low battery indicator

1. Fuel flow meter2. Fuel consumption meter / Fuel economy

meter / Twin engine speed synchronizer3. Water separator-alert indicator (operates

only if the sensor has been installed)

ZMU01748

1

23


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35

● The fuel flow meter displays gallons/hour orliters/hour according to operator prefer-ence. Select the desired units of measure-ment by setting the selector switch on theback of the gauge during installation.

● The fuel consumption meter and fuel econ-omy meter will indicate the same unit ofmeasurement.

Fuel flow readings are not accurate when theengine is operating under about 1300 r/min.As the fuel pump cycles on and off, the displayindicates either no fuel flow or higher flow thanthe actual average use.Dual engine users: the fuel flow meter candisplay the fuel flow of either or both engines.

To change the fuel flow display, press the“ ” (set) button repeatedly until the gaugedisplays “ ” (for fuel flow to the starboard en-gine only), “ ” (for fuel flow to the port engineonly), or “ ” (for total fuel flow both engines).

EMU36090

Fuel consumption meter / Fuel econo-my meter / Twin engine speed syn-chronizerThe display shows either the fuel consump-tion meter, the fuel economy meter, or thetwin engine synchronizer.To change the display, press the “ ”(mode) button repeatedly until the indicator onthe face of the gauge points to “ ” (fuel con-sumption meter), “ ” (fuel economymeter), or “ ” (twin engine speed syn-chronizer).EMU26761

Fuel consumption meterThis gauge displays the total amount of fuelconsumed since the gauge was last reset.To reset the total fuel consumption meter tozero, press the “ ” (set) and “ ” (mode)buttons at the same time.

EMU26771

Fuel economyThis gauge displays the approximate distanceper liter or gallon when cruising.

1. Selector switch

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If twin engines are installed on your boat, thegauge will only display the total fuel economyof both engines.● Fuel consumption varies greatly with boat

design, weight, propeller used, engine trimangle, sea conditions (including wind), andthrottle position. Fuel consumption also var-ies slightly with the type of water (salt, fresh,and contaminate levels), air temperatureand humidity, cleanliness of the boat bot-tom, engine mounting height, skill of the op-erator, and individual gasoline formulation(winter or summer fuel and amount of addi-tives).

● The Yamaha digital speedometer and fuelmanagement meter calculates speed,miles traveled, and fuel economy by watermovement at the stern of the boat. This dis-tance can vary greatly from the actual dis-tance traveled because of water currents,sea swells, and the condition of the waterspeed sensor (if partially plugged or dam-aged).

● Individual engines may slightly vary in theirfuel consumption due to manufacturingvariations. These variations can be evengreater if the engines are of different yearmodels. In addition, variations in propellers,even of the same basic dimensions of thesame design, can also cause a slight varia-tion in fuel consumption.

EMU26782

Twin-engine speed synchronizerThis gauge displays the difference in enginespeed (r/min) between the port and starboardengines for reference purposes when syn-chronizing the two engines’ speeds.

If the two engines’ speeds are not synchro-nized while cruising, adjusting trim angle orthrottle can synchronize them.If large differences in trim angle or throttle areneeded to synchronize the engines, consultyour Yamaha dealer for adjustments to thethrottle cables.

ZMU01752

1. Port engine speed is higher2. Port engine speed is slightly higher3. Engine speed is synchronized evenly be-

tween port and starboard engines4. Starboard engine speed is slightly higher5. Starboard engine speed is higher

ZMU01753

ZMU01754

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2

3

4

5


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EMU26793

Water separator-alert indicatorThis indicator will blink when water has accu-mulated in the water separator. In such anevent, stop the engine and drain the waterfrom the separator.This indicator only operates when a waterseparator sensor is equipped.

EMU40792

Command Link Multifunction Meters

There are 6 types of Command Link meters:tachometer unit (square and round types),speedometer unit (square type), speed & fuelmeter unit (square and round types), and fuelmanagement meter (square type). The indi-cator system is slightly different between theround and square types. Check the modeland type of your unit carefully. This manualdescribes mainly the alert indicators. Formore details on setting meters or changing in-dicator systems, see the operation manual forthe meters.EMU41164

Command Link Multifunction Tachometer

The tachometer shows the engine speed andhas functions of trim meter, adjusting trollingspeed, cooling water/engine temperature dis-play, battery voltage display, total hour/triphour display, oil pressure display, water de-tection alert, engine trouble alert, and periodic

maintenance notification. If the cooling waterpressure sensor is installed, the unit can alsoshow the cooling water pressure display.However, even if the cooling water pressuresensor is not installed, the cooling water pres-sure display can be shown by connecting anoptional sensor to the unit. For the optionalsensor, consult your Yamaha dealer. The ta-chometer unit is available in round and squaretypes. Check your tachometer unit type.

ZMU01755

1. Set button2. Mode button

1. Tachometer2. Trim meter3. Multifunction display4. Cooling water pressure5. Cooling water/engine temperature6. Water detection-alert indicator7. Battery voltage8. Oil pressure (4-stroke models)

21

ZMU05415

2

3

1

4

5

6

7

8 ZMU05416


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EMU36110

Start-up checksPlace the remote control lever in neutral andturn the main switch to “ ” (on). After all thedisplays come on and the total hour displaycomes on, the gauge will change to normaloperation. If the buzzer sounds and the waterseparator-alert indicator blinks, consult yourYamaha dealer immediately.

TIP:To stop the buzzer, press the “ ” (set) or“ ” (mode) button.EMU36130

Low oil pressure-alertIf the engine oil pressure drops too low, thelow oil pressure-alert indicator will start toblink, and the engine speed will automaticallydecrease to about 2000 r/min.

Stop the engine immediately if the buzzersounds and the low oil pressure-alert indicatorblinks. Check the engine oil quantity and re-plenish oil if necessary. If the alert device hasactivated while the appropriate engine oilquantity is maintained, consult your Yamahadealer.

NOTICEECM01601

Do not continue to run the engine if thelow oil pressure alert device has activated.Serious engine damage will occur.


1. Tachometer2. Trim meter3. Multifunction display4. Water detection-alert indicator5. Engine trouble alert/maintenance indicator6. Cooling water pressure7. Oil pressure (4-stroke models)8. Cooling water/engine temperature9. Battery voltage

21

ZMU05417

1 4 5 2

3

6 87 9 ZMU05418

ZMU05430

ZMU05431


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39

EMU36221

Overheat alertIf the engine temperature rises too high whilecruising, the overheat-alert indicator will startto blink. The engine speed will automaticallydecrease to about 2000 r/min.

Stop the engine immediately if the buzzersounds and the overheat alert device has ac-tivated. Check the cooling water inlet for clog-ging.

NOTICEECM01592

● Do not continue to run the engine if theoverheat-alert indicator blinks. Seriousengine damage will occur.

● Do not continue to operate the engine ifa alert device has activated. Consultyour Yamaha dealer if the problem can-not be located and corrected.

EMU36150

Water separator alertThis indicator will blink if water has accumulat-ed in the water separator (fuel filter) whilecruising. In such an event, stop the engine im-mediately and see page 88 of this manual todrain the water from the fuel filter. Get back tothe port soon and consult a Yamaha dealerimmediately.

NOTICEECM00910

Gasoline mixed with water could causedamage to the engine.

EMU36160

Engine trouble alertThis indicator will blink if the engine malfunc-tions while cruising. Get back to the port soonand consult a Yamaha dealer immediately.

ZMU05421

ZMU05422

ZMU05423

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40

NOTICEECM00920

In such an event, the engine will not oper-ate properly. Consult a Yamaha dealer im-mediately.

EMU36170

Low battery voltage-alertIf the battery voltage drops, the low batteryvoltage-alert indicator and the battery voltagevalue will start to blink. Get back to the portsoon if the low battery voltage-alert devicehas activated. For charging the battery, con-sult your Yamaha dealer.

EMU41033

Command Link Multifunction Speed & Fuel Meter

The speed & fuel meter unit shows the boatspeed and has the functions of fuel meter, to-tal fuel consumption display, fuel economydisplay, fuel flow display, and system voltagedisplay. The chosen display is selected usingthe “ ” (set) and “ ” (mode) buttons asdescribed in this section. If the speed sensoris installed, the unit can also show the trip dis-play. However, even if the speed sensor is notinstalled, the trip display can be shown byconnecting an optional sensor to the unit. Inaddition, if optional sensors are connected tothe unit, water surface temperature display,depth display, and clock will also be available.For the optional sensors, consult yourYamaha dealer.

ZMU05425

ZMU05426

ZMU05427

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The speed & fuel meter unit is available inround and square types. Check your speed &fuel meter unit type.After the main switch is first turned to the “ ”(on) position, all of the displays come on as atest. After a few seconds, the unit will changeto normal operation.For more information, see the operation man-ual for the meters.

EMU41042

Command Link Multifunction Speedometer

The speedometer unit shows the boat speedand has functions of fuel meter and systemvoltage display. The chosen display is select-ed using the “ ” (set) and “ ” (mode)buttons as described in this section. In addi-tion, the speedometer can show the desiredunit of measurement such as km/h, mph, orknots. If the speed sensor is installed, the unitcan also show the trip display. However, evenif the speed sensor is not installed, the trip dis-play can be shown by connecting an optionalsensor to the unit. In addition, if optional sen-sors are connected to the unit, water surface


1. Speedometer2. Fuel meter3. Multifunction display

21

ZMU05432

1

23

ZMU05433



21

ZMU05434

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3 ZMU05435


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42

temperature display, depth display, and clockwill also be available. For the optional sen-sors, consult your Yamaha dealer.After the main switch is first turned to the “ ”(on) position, all of the displays come on as atest. After a few seconds, the unit will changeto normal operation.For more information, see the operation man-ual for the meters.

EMU41022

Command Link Multifunction Fuel Management Meter

The fuel management meter has the func-tions of fuel flow meter, total consumption dis-play, fuel economy display, and remaining

fuel display. The chosen display is selectedusing the “ ” (set) and “ ” (mode) but-tons as described in this section.After the main switch is first turned to the “ ”(on) position, all of the displays come on as atest. After a few seconds, the unit will changeto normal operation.For more information, see the operation man-ual for the meters.



21

ZMU05436

1

23

ZMU05437


1. Fuel flow meter2. Multifunction display

21

ZMU05438

1

2

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Engine control system

43

EMU26803

Alert system

NOTICEECM00091

Do not continue to operate the engine if aalert device has activated. Consult yourYamaha dealer if the problem cannot be lo-cated and corrected.

EMU26827

Overheat alertThis engine has the overheat alert device. Ifthe engine temperature rises too high, thealert device will activate.● The engine speed will automatically de-

crease to about 2000 r/min.● The overheat-alert indicator will light or

blink.

● The buzzer will sound.

If the alert system has activated, stop the en-gine and check the cooling water inlets:● Check trim angle to be sure that the cooling

water inlet is submerged.● Check the cooling water inlet for clogging.Dual engine drive users:If the overheat-alert system of one engine ac-tivates, the engine will slow down. To switchoff the alert activation on the engine not affect-ed by overheating, turn off the main switch ofthe engine overheating. If the alert systemhas activated, stop the engine and tilt the out-board motor up to check the cooling water in-let for clogging. If the alert system has stillactivated, tilt the overheated outboard motorup and return to the port.EMU35025

Low oil pressure alertIf the oil pressure drops too low, the alert de-vice will activate.● The engine speed will automatically de-

crease to about 2000 r/min. The low oilpressure-alert indicator will light or blink.

ZMU01757

ZMU04583

OFF START

ON ON

OFF START

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Engine control system

44

● The buzzer will sound.

If the alert system has activated, stop the en-gine as soon as it is safe to do so. Check theoil level and add oil as needed. If the oil levelis correct and the alert device does not switchoff, consult your Yamaha dealer.Twin engine drive users:If the low oil pressure alert system of one en-gine activates, both engines will slow downand the buzzer will sound. To switch off the

alert activation on the engine not affected bylow oil pressure, turn off the main switch of theengine with the low oil pressure.

ZMU01828

ZMU04583

OFF START

ON ON

OFF START

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Installation

45

EMU26902

InstallationThe information presented in this section is in-tended as reference only. It is not possible toprovide complete instructions for every possi-ble boat and motor combination. Propermounting depends in part on experience andthe specific boat and motor combination.

WARNINGEWM01590

● Overpowering a boat could cause se-vere instability. Do not install an out-board motor with more horsepower thanthe maximum rating on the capacityplate of the boat. If the boat does nothave a capacity plate, consult the boatmanufacturer.

● Improper mounting of the outboard mo-tor could result in hazardous conditionssuch as poor handling, loss of control,or fire hazards. For permanently mount-ed models, your dealer or other personexperienced in proper rigging shouldmount the motor.

EMU33481

Mounting the outboard motorThe outboard motor should be mounted sothat the boat is well balanced. Otherwise, theboat could be hard to steer. For single-engineboats, mount the outboard motor on the cen-terline (keel line) of the boat. For twin engineboats, mount the outboard motors equidistantfrom the centerline. Consult your Yamahadealer or boat manufacturer for further infor-mation on determining the proper mountinglocation.

EMU26933

Mounting height (boat bottom)The mounting height of your outboard motoraffects its efficiency and reliability. If it ismounted too high, propeller ventilation mayoccur, which will reduce propulsion due to ex-cessive propeller slip, and the water intakesfor the cooling system may not get adequatewater supply, which can cause engine over-heating. If the engine is mounted too low, wa-ter resistance (drag) will increase, therebyreducing engine efficiency and performance.Most commonly, outboard motor should bemounted so that the anti-cavitation plate is inalignment with the bottom of the boat. The op-timum mounting height of the outboard motoris affected by the boat/motor combination andthe desired use. Test runs at different heightscan help determine the optimum mounting

1. Center line (keel line)

1. Center line (keel line)

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46

height. Consult your Yamaha dealer or boatmanufacturer for further information on deter-mining the proper mounting height.

NOTICEECM01634

● Make sure that the idle hole is highenough to prevent water from enteringthe engine even if the boat is stationarywith the maximum load.

● Incorrect engine height or obstructionsto the smooth flow of water (such as thedesign or condition of the boat, or ac-cessories, such as transom ladders ordepth finder transducers) can create air-borne water spray while the boat iscruising. If the outboard motor is operat-ed continuously in the presence of air-borne water spray, enough water couldenter the engine through the air intakeopening in the top cowling to cause se-vere engine damage. Remove the causeof the airborne water spray.

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47

EMU36381

First-time operationEMU36391

Fill engine oilThe engine is shipped from the factory withoutengine oil. If your dealer did not fill the oil, youmust fill it before starting the engine. NOTICE:Check that the engine is filled with oil be-fore first-time operation to avoid severeengine damage. [ECM01781]

The engine is shipped with the following stick-er, which should be removed after engine oilis filled for the first time. For more informationon checking the engine oil level, see page 49.

EMU30174

Breaking in engineYour new engine requires a period of break-into allow mating surfaces of moving parts towear in evenly. Correct break-in will help en-sure proper performance and longer enginelife. NOTICE: Failure to follow the break-inprocedure could result in reduced enginelife or even severe engine damage. [ECM00801]

EMU27085

Procedure for 4-stroke modelsYour new engine requires a period of 10hours break-in to allow mating surfaces ofmoving parts to wear in evenly.

TIP:Run the engine in the water, under load (ingear with a propeller installed) as follows. For10 hours for breaking in engine avoid extend-ed idling, rough water and crowded areas.

1. For the first hour of operation:Run the engine at varying speeds up to2000 r/min or approximately half throttle.

2. For the second hour of operation:Increase engine speed as much as nec-essary to put the boat on plane (but avoidfull-throttle operation), then back off onthe throttle while keeping the boat at aplaning speed.

3. Remaining 8 hours:Run the engine at any speed. However,avoid operating at full throttle for morethan 5 minutes at a time.

4. After the first 10 hours:Operate the engine normally.

EMU36400

Getting to know your boatDifferent boats handle differently. Operatecautiously while you learn how your boat han-dles under different conditions and with differ-ent trim angles (see page 57).EMU36413

Checks before starting engine

WARNINGEWM01921

If any item in “Checks before starting en-gine” is not working properly, have it in-spected and repaired before operating theoutboard motor. Otherwise, an accidentcould occur.

NOTICEECM00120

Do not start the engine out of water. Over-heating and serious engine damage canoccur.

EMU36421

Fuel levelBe sure you have plenty of fuel for your trip. Agood rule is to use 1/3 of your fuel to get to thedestination, 1/3 to return, and to keep 1/3 asan emergency reserve. With the boat level on

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48

a trailer or in the water, turn the key to “ ”(on) and check the fuel level. For fuel filling in-structions, see page 52.EMU36432

Remove cowlingFor the following checks, remove the topcowling from the engine. To remove the en-gine cowling, release all the lock levers and liftoff the cowling.

EMU36442

Fuel system

WARNINGEWM00060

Gasoline and its vapors are highly flam-mable and explosive. Keep away fromsparks, cigarettes, flames, or other sourc-es of ignition.

WARNINGEWM00910

Leaking fuel can result in fire or explosion.● Check for fuel leakage regularly.

● If any fuel leakage is found, the fuel sys-tem must be repaired by a qualified me-chanic. Improper repairs can make theoutboard unsafe to operate.

EMU36451

Check for fuel leaks● Check for fuel leaks or gasoline fumes in

the boat.● Check for fuel leakage from the fuel system.● Check the fuel tank and fuel lines for

cracks, swellings, or other damages.EMU37322

Checking the fuel filterCheck that the fuel filter is clean and free ofwater. If any water is found in the fuel, or if asignificant amount of debris is found, the fueltank should be checked and cleaned by aYamaha dealer.

EMU36462

Controls● Turn the steering wheel full-right and full-

left. Make sure operation is smooth and un-restricted throughout the whole range withno binding or excessive free play.

● Operate the throttle levers several times tomake sure there is no hesitation in theirtravel. Operation should be smooth overthe complete range of motion, and each le-ver should return completely to the idle po-sition.

● Look for loose or damaged connections ofthe throttle and shift cables.

ZMU06106

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49

EMU36483

Engine shut-off cord (lanyard)Inspect the engine shut-off cord and clip fordamage, such as cuts, breaks, and wear.

EMU37053

Engine oil1. Put the outboard motor in an upright po-

sition (not tilted). NOTICE: If the motoris not level, the oil level indicated onthe dipstick may not be accurate.[ECM01790]

2. Remove oil dipstick and wipe it clean.3. Insert the dipstick and remove it again.

Be sure to completely insert the dipstickinto the dipstick guide, otherwise the oillevel measurement will be incorrect.

4. Check the oil level using the dipstick to besure the level falls between the upper lev-el mark and lower level mark. Consultyour Yamaha dealer if the oil level is outof specified level or if it appears milky ordirty.

EMU27153

Engine● Check the engine and engine mounting.● Look for loose or damaged fasteners.● Check the propeller for damage.● Check for engine oil leaks.EMU36493

Flushing deviceCheck that the flushing device’s garden hoseconnector is securely screwed on to the fittingon the bottom cowling. NOTICE: If the gar-den hose connector is not properly con-



ZMU04565

12

3

ONSTARTOFF

ONSTARTOFF

1

2

3

ZMU05818

1. Oil dipstick

1. Oil dipstick2. Lower level mark3. Upper level mark

ZMU05972

1

1 3

2

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50

nected, cooling water can leak out and theengine can overheat during operation.[ECM01801]

EMU36941

Install cowling1. Be sure that all cowling lock levers are re-

leased.2. Be sure that the rubber seal is seated all

the way around the engine.3. Place the cowling on top of the seal.4. Check to be sure it fits properly in the rub-

ber seal.5. Move the levers to lock the cowling as

shown. NOTICE: If the top cowling isnot installed correctly, water spray un-der the top cowling can damage theengine, or the top cowling can blow offat high speeds. [ECM01991]

After installing, check the fitting of the topcowling by pushing it with both hands. If thetop cowling is loose, have it repaired by yourYamaha dealer.

1. Fitting2. Flushing device

ZMU06164

1 2

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51

EMU29158

Checking power trim and tilt system

WARNINGEWM01930

● Never get under the lower unit while it istilted, even when the tilt support lever islocked. Severe injury could occur if theoutboard motor accidentally falls.

● Body parts can be crushed between themotor and the clamp bracket when themotor is trimmed or tilted.

● Be sure no one is near the outboard mo-tor before performing this check.

1. Check the power trim and tilt unit for anysign of oil leaks.

2. Operate each of the power trim and tiltswitches on the remote control and en-gine bottom cowling to check that allswitches work.

3. Tilt the outboard motor up and check thatthe tilt rod and trim rods are extendedcompletely.

4. Use the tilt support lever to lock the motorin the up position. Operate the tilt downswitch briefly so the motor is supportedby the tilt support lever.

5. Check that the tilt rod and trim rods arefree of corrosion or other flaws.

6. Activate the tilt-down switch until the trimrods have retracted completely into thecylinders.

7. Activate the trim-up switch until the tilt rodis fully extended. Unlock the tilt supportlever.

1. Tilt rod2. Trim rods

1. Tilt support lever

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52

8. Tilt the outboard motor down. Check thatthe tilt rod and trim rods operate smooth-ly.

EMU36582

BatteryCheck that the battery is in good condition,and fully charged. Check that the battery con-nections are clean, secure and covered by in-sulating covers. The electrical contacts of thebattery and cables must be clean and proper-ly connected or the battery will not start theengine.Refer to the battery manufacturer’s instruc-tions for checks for your particular battery.EMU30026

Filling fuel

WARNINGEWM01830

● Gasoline and its vapors are highly flam-mable and explosive. Always refuel ac-cording to this procedure to reduce therisk of fire and explosion.

● Gasoline is poisonous and can cause in-jury or death. Handle gasoline with care.Never siphon gasoline by mouth. If youshould swallow some gasoline or inhalea lot of gasoline vapor, or get some gas-oline in your eyes, see your doctor im-mediately. If gasoline spills on yourskin, wash with soap and water. If gaso-line spills on your clothing, change yourclothes.

1. Make sure that the engine is stopped.2. Make sure that the boat is in a well-venti-

lated outdoor area, either securelymoored or trailered.

3. Make sure that no one is in the boat.4. Do not smoke and keep away from

sparks, flames, static electric discharge,or other sources of ignition.

5. If you use a portable container to storeand dispense fuel, only use a locally ap-proved GASOLINE container.

6. Touch the fuel nozzle to the filler openingor funnel to help prevent electrostaticsparks.

7. Fill the fuel tank, but do not overfill.WARNING! Do not overfill. Otherwisefuel can expand and overflow if thetemperature increases. [EWM02610]

8. Tighten the fuel tank cap securely.9. Wipe up any spilled gasoline immediately

with dry rags. Dispose of rags properlyaccording to local laws or regulations.

EMU27452

Operating engine

WARNINGEWM00420

● Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clear of any obstructions.Be sure there are no swimmers in thewater near you.

● When the air vent screw is loosened,gasoline vapor will be released. Gaso-line is highly flammable, and its vaporsare flammable and explosive. Refrainfrom smoking, and keep away fromopen flames and sparks while looseningthe air vent screw.

● This product emits exhaust gases whichcontain carbon monoxide, a colorless,odorless gas which could cause braindamage or death when inhaled. Symp-toms include nausea, dizziness, anddrowsiness. Keep cockpit and cabin ar-eas well ventilated. Avoid blocking ex-haust outlets.


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53

EMU31812

Sending fuel1. If there is a fuel joint or a fuel cock on the

boat, firmly connect the fuel line to thejoint or open the fuel cock.

2. Squeeze the primer pump, with the arrowpointing up, until you feel it become firm.

EMU27494

Starting engine

WARNINGEWM01600

Before starting the engine, make sure thatthe boat is tightly moored and that you cansteer clear of any obstructions. Be surethere are no swimmers in the water nearyou.

EMU27629

Electric start and remote control models

WARNINGEWM01840

● Failure to attached engine shut-off cordcould result in a runaway boat if opera-tor is ejected. Attach the engine shut-offcord to a secure place on your clothing,or your arm or leg while operating. Donot attach the cord to clothing that couldtear loose. Do not route the cord whereit could become entangled, preventing itfrom functioning.

● Avoid accidentally pulling the cord dur-ing normal operation. Loss of enginepower means the loss of most steeringcontrol. Also, without engine power, theboat could slow rapidly. This couldcause people and objects in the boat tobe thrown forward.

1. Place the remote control lever in “ ”(neutral).

TIP:The start-in-gear protection device preventsthe engine from starting except when in neu-tral.2. Attach the engine shut-off cord to a se-

cure place on your clothing, or your armor leg. Then install the clip on the otherend of the cord into the engine shut-offswitch.

1. Arrow

N

ZMU04588

ZMU04628


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Operation

54

3. Turn the main switch to “ ” (on).

TIP:Dual engine users: When the main switch isturned on, the buzzer operates for a few sec-onds then stops automatically. The buzzeralso operates if one of the engines stalls.4. Turn the main switch to “ ” (start),

and hold it for a maximum of 5 seconds.

5. Immediately after the engine starts, re-lease the main switch to return it to “ ”(on). NOTICE: Never turn the mainswitch to “ ” (start) while the en-gine is running. Do not keep the start-er motor turning for more than 5seconds. If the starter motor is turnedcontinuously for more than 5 sec-onds, the battery will be quickly dis-charged, thus making it impossible tostart the engine. The starter can alsobe damaged. If the engine will not startafter 5 seconds of cranking, return themain switch to “ ” (on), wait 10 sec-onds, then crank the engine again.[ECM00192]

EMU36510

Checks after starting engineEMU36523

Cooling waterCheck for a steady flow of water from the cool-ing water pilot hole. A continuous flow of waterfrom the pilot hole indicates that the waterpump is pumping water through the coolingwater passages. If the cooling water passag-es are frozen, it may take a while for water tostart flowing out of the pilot hole.

NOTICEECM01810

If water is not flowing out of the pilot holeat all times while the engine is running,overheating and serious damage could

ONSTARTOFF

ONSTARTOFF

ZMU05828

ONSTART

ZMU04596

ONSTART

ZMU05830


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55

occur. Stop the engine and check whetherthe cooling water inlet on the lower case orthe cooling water pilot hole is blocked.Consult your Yamaha dealer if the prob-lem cannot be located and corrected.

EMU27670

Warming up engineEMU30037

Electric start models1. After starting the engine, allow it to idle for

3 minutes to warm up to provide maxi-mum operating performance and accel-eration. Failure to do so will shortenengine life.

2. Be sure the low oil pressure-alert indica-tor remains off after starting the engine.NOTICE: If the low oil pressure-alertindicator blinks after the engine starts,stop the engine. Otherwise, seriousengine damage could occur. Checkthe oil level and add engine oil if nec-essary. Consult your Yamaha dealer ifthe cause for the low oil pressure alertcannot be found. [ECM01831]

EMU36531

Checks after engine warm upEMU36541

ShiftingWhile the boat is tightly moored, and withoutapplying throttle, confirm that the engine shiftssmoothly into forward and reverse, and backto neutral.

EMU31721

Stop switches● Confirm that turning the main switch to the

“ ” (off) position stops the engine.● Confirm that removing the clip from the en-

gine shut-off switch stops the engine.● Confirm that the engine cannot be started

with the clip removed from the engine shut-off switch.

EMU31733

Shifting

WARNINGEWM00180

Before shifting, make sure there are noswimmers or obstacles in the water nearyou.

NOTICEECM01610

Warm up the engine before shifting intogear. Until the engine is warm, the idlespeed may be higher than normal. Highidle speed can prevent you from shiftingback to neutral. If this occurs, stop the en-gine, shift to neutral, then restart the en-gine and allow it to warm up.

To shift out of neutral1. Pull the neutral interlock trigger up (if

equipped).2. Move the remote control lever firmly and

crisply forward (for forward gear) or rear-ward (for reverse gear) about 35° (a de-tent can be felt).


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To shift from in gear (forward/reverse) to neu-tral1. Close the throttle so that the engine

slows to idle speed.

2. After the engine is at idle speed in gear,move the remote control lever firmly andcrisply to the neutral position.

EMU31742

Stopping boat

WARNINGEWM01510

● Do not use the reverse function to slowdown or stop the boat as it could causeyou to lose control, be ejected, or impactthe steering wheel or other parts of theboat. This could increase the risk of se-rious injury. It could also damage theshift mechanism.

● Do not shift into reverse while travelingat planing speeds. Loss of control, boatswamping, or damage to the boat couldoccur.

The boat is not equipped with a separatebraking system. Water resistance stops it af-ter the throttle lever is moved back to idle. Thestopping distance varies depending on grossweight, water surface conditions, and wind di-rection.EMU27821

Stopping engineBefore stopping the engine, first let it cool offfor a few minutes at idle or low speed. Stop-ping the engine immediately after operating athigh speed is not recommended.EMU31831

Procedure1. Turn the main switch to “ ” (off).N

ZMU04588

ONOFF START

ZMU04599


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Operation

57

2. Remove the key if the boat will be left un-attended.

TIP:The engine can also be stopped by pulling thecord and removing the clip from the engineshut-off switch, then turning the main switchto “ ” (off).EMU27862

Trimming outboard motor

WARNINGEWM00740

Excessive trim for the operating condi-tions (either trim up or trim down) cancause boat instability and can make steer-ing the boat more difficult. This increasesthe possibility of an accident. If the boatbegins to feel unstable or is hard to steer,slow down and/or readjust the trim angle.

The trim angle of the outboard motor helpsdetermine the position of the bow of the boatin the water. Correct trim angle will help im-prove performance and fuel economy whilereducing strain on the engine. Correct trim an-gle depends upon the combination of boat,engine, and propeller. Correct trim is also af-fected by variables such as the load in theboat, sea conditions, and running speed.

EMU27888

Adjusting trim angle (Power trim and tilt)

WARNINGEWM00753

● Be sure all people are clear of the out-board motor when adjusting the trim an-gle. Body parts can be crushed betweenthe motor and the clamp bracket whenthe motor is trimmed or tilted.

● Use caution when trying a trim positionfor the first time. Increase speed gradu-ally and watch for any signs of instabilityor control problems. Improper trim an-gle can cause loss of control.

● If equipped with a power trim and tiltswitch located on the bottom cowling,use the switch only when the boat is at acomplete stop with the engine off. Donot adjust the trim angle with this switchwhile the boat is moving.

Adjust the outboard motor trim angle usingthe power trim and tilt switch.

OFFOFFON ON

ZMU05833

1. Trim operating angle


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To raise the bow (trim-out), press the switch“ ” (up).To lower the bow (trim-in), press the switch“ ” (down).Make test runs with the trim set to different an-gles to find the position that works best foryour boat and operating conditions.

EMU27912

Adjusting boat trimWhen the boat is on plane, a bow-up attituderesults in less drag, greater stability and effi-ciency. This is generally when the keel line ofthe boat is up about 3 to 5 degrees. With thebow up, the boat may have a greater tenden-cy to steer to one side or the other. Compen-sate for this as you steer. When the bow of theboat is down, it is easier to accelerate from astanding start onto plane.

Bow UpToo much trim-out puts the bow of the boattoo high in the water. Performance and econ-omy are decreased because the hull of theboat is pushing the water and there is more airdrag. Excessive trim-out can also cause thepropeller to ventilate, which reduces perfor-mance further, and the boat may “porpoise”(hop in the water), which could throw the op-erator and passengers overboard.




UP

DN

1

ZMU04193

ZMU04601

DN

UP

1


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Bow DownToo much trim-in causes the boat to “plow”through the water, decreasing fuel economyand making it hard to increase speed. Operat-ing with excessive trim-in at higher speedsalso makes the boat unstable. Resistance atthe bow is greatly increased, heightening thedanger of “bow steering” and making opera-tion difficult and dangerous.

TIP:Depending on the type of boat, the outboardmotor trim angle may have little effect on thetrim of the boat when operating.EMU27946

Tilting up and downIf the engine will be stopped for some time orif the boat is moored in shallows, the outboardmotor should be tilted up to protect the propel-ler and lower case from damage by collisionwith obstructions, and also to reduce salt cor-rosion.

WARNINGEWM01543

Make sure that all people are clear of theoutboard motor when tilting the outboardmotor up and down. Body parts can becrushed between the outboard motor andthe clamp bracket when the outboard mo-tor is trimmed or tilted.

NOTICEECM00991

● Before tilting the outboard motor, followthe procedure under “Stopping engine”in this chapter. Never tilt the outboardmotor while the engine is running. Se-vere damage from overheating can re-sult.

● To prevent the cooling water passagesfrom becoming frozen when the ambienttemperature is 5°C or below, tilt the out-board motor up after it has beenstopped 30 seconds or more.

EMU42681

Procedure for tilting up (power trim and tilt models)1. Place the remote control lever in neutral.

2. Press the power trim and tilt switch “ ”(up) until the outboard motor has tilted upcompletely.

N

ZMU07396

UP

ZMU04194


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3. Pull the tilt support lever toward you tosupport the engine. WARNING! Aftertilting the outboard motor, be sure tosupport it with the tilt support knob ortilt support lever. Otherwise the out-board motor could fall back down sud-denly if oil in the power trim and tiltunit or in the power tilt unit loses pres-sure. [EWM00262] NOTICE: Do not use thetilt support lever or knob when traile-ring the boat. The outboard motorcould shake loose from the tilt supportand fall. If the motor cannot be trail-ered in the normal running position,use an additional support device tosecure it in the tilt position. For moredetailed information, see page 63.[ECM01641]

4. Once the outboard motor is supportedwith the tilt support lever, press the powertrim and tilt switch “ ” (down) to retractthe trim rods. NOTICE: Make sure thatthe trim rods retracts completely dur-ing mooring. This protects the rodsfrom marine growth and corrosion,which could damage the power trimand tilt mechanism. [ECM00252]

ZMU04602

UP

ZMU07399


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EMU42700

Procedure for tilting down (power trim and tilt models)1. Push the power trim and tilt switch “ ”

(up) until the outboard motor is supportedby the tilt rod and the tilt support lever be-comes free.

2. Release the tilt support lever.

3. Push the power trim and tilt switch “ ”(down) to lower the outboard motor to thedesired position.

EMU28062

Shallow water EMU32871

Power trim and tilt modelsThe outboard motor can be tilted up partiallyto allow operation in shallow water.

NOTICEECM01490

● If the engine speed is suddenly in-creased when the outboard motor is par-tially tilted up, the power trim and tilt unitcould be damaged.

● Do not tilt the outboard motor up so thatthe cooling water inlet on the lower unitis above the surface of the water whensetting up for and cruising in shallowwater. Otherwise severe damage fromoverheating can result.

EMU32922

Procedure for power trim and tilt models1. Place the remote control lever in neutral.

DNZMU04196

ZMU04603

DN

N

ZMU04588


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Operation

62

2. Slightly tilt the outboard motor up to thedesired position using the power trim andtilt switch. WARNING! Using the powertrim and tilt switch on the bottomcowling while the boat is moving orengine is on could increase the risk offalling overboard and could distractthe operator, increasing the risk ofcollision with another boat or an ob-stacle. [EWM01850]

3. To return the outboard motor to the nor-mal running position, press the powertrim and tilt switch and slowly tilt the out-board motor down.

EMU28195

Cruising in other conditionsCruising in salt waterAfter operating in salt water, flush the coolingwater passages with fresh water to preventthem from becoming clogged. Also rinse theoutside of the outboard motor with fresh wa-ter.Cruising in muddy, turbid, or acidic waterYamaha strongly recommends that you usethe optional chromium-plated water pump kit(see page 19) if you use the outboard motor inacidic water or water with a lot of sediment init, such as muddy or turbid (cloudy) water. Af-ter operating in such water, flush the coolingpassages with fresh water to prevent corro-sion. Also rinse the outside of the outboardmotor with fresh water.


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EMU41531

Transporting and storing out-board motor

WARNINGEWM02640

● USE CARE when transporting fuel tank,whether in a boat or car.

● DO NOT fill fuel container to maximumcapacity. Gasoline will expand consider-ably as it warms up and can build uppressure in the fuel container. This cancause fuel leakage and a potential firehazard.

● Leaking fuel is a fire hazard. Tighten se-curely the fuel valve when transportingand storing the outboard motor.

● Never get under the outboard motorwhile it is tilted. Severe injury could oc-cur if the outboard motor accidentallyfalls.

● Do not use the tilt support lever or knobwhen trailering the boat. The outboardmotor could shake loose from the tiltsupport and fall. If the outboard motorcannot be trailered in the normal run-ning position, use an additional supportdevice to secure it in the tilt position.

Leaking fuel is a fire hazard. When traileringthe boat, close the fuel valve to prevent fuelfrom leaking.The outboard motor should be transportedand stored in the normal running position. Ifthere is insufficient road clearance in this po-sition, then trailer the outboard motor in the tiltposition using a motor support device such asa transom saver bar. Consult your Yamahadealer for further details.When the outboard motor is tilted prolongedtime for mooring or trailering the boat, closethe fuel valve.

EMU30720

Storing outboard motorWhen storing your Yamaha outboard motorfor prolonged periods of time (2 months orlonger), several important procedures mustbe performed to prevent excessive damage. Itis advisable to have your outboard motor ser-viced by an authorized Yamaha dealer prior tostorage. However, you, the owner, with a min-imum of tools, can perform the following pro-cedures.

NOTICEECM01360

● To prevent problems which can becaused by oil entering the cylinder fromthe sump, keep the outboard motor inthe attitude shown when transportingand storing it. Do not store or transportthe outboard motor on its side (not up-right).

● Do not place the outboard motor on itsside before the cooling water hasdrained from it completely, otherwisewater may enter the cylinder through theexhaust port and cause engine trouble.

● Store the outboard motor in a dry, well-ventilated place, not in direct sunlight.

TIP:The last time you use your Yamaha outboardmotor before storing it for a prolonged period,add one ounce of Yamaha Fuel Conditionerand Stabilizer to each gallon of fuel in the fueltank.


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EMU28305

ProcedureEMU31922

Conditioning and stabilizing fuel (F250,LF250)Fill the fuel tank with fresh fuel and add oneounce of “Yamaha Fuel Conditioner and Sta-bilizer” to each gallon of fuel.

TIP:The use of “Yamaha Fuel Conditioner andStabilizer” eliminates the need to drain thefuel system. Consult your Yamaha dealer orother qualified mechanic if the fuel system isto be drained instead.EMU30745

Flushing with the flushing attachment(F200, LF200, F225, LF225)1. Wash the outboard motor body using

fresh water. NOTICE: Do not spray wa-ter into the air intake. [ECM01840] For furtherinformation, see page 66.

2. Fill the fuel tank with fresh fuel and addone ounce of “Yamaha Fuel Conditionerand Stabilizer” to each gallon of fuel.

TIP:The use of “Yamaha Fuel Conditioner andStabilizer” eliminates the need to drain thefuel system. Consult your Yamaha dealer orother qualified mechanic if the fuel system isto be drained instead.3. Remove the top cowling and propeller.

4. Install the flushing attachment over thecooling water inlet. NOTICE: Do not runthe engine without supplying it withcooling water. Either the engine waterpump will be damaged or the enginewill be damaged from overheating. Be-fore starting the engine, be sure tosupply water to the cooling water pas-sages. Avoid running the outboardmotor at high speed while on theflushing attachment, otherwise over-heating could occur. [ECM02000]

5. Cooling system flushing is essential toprevent the cooling system from cloggingup with salt, sand, or dirt. In addition, fog-ging/lubricating of the engine is mandato-ry to prevent excessive engine damagedue to rust. Perform the flushing and fog-ging at the same time. WARNING! Donot touch or remove electrical partswhen starting or during operation.Keep hands, hair, and clothes awayfrom the flywheel and other rotatingparts while the engine is running.[EWM00091]

TIP:● When using the flushing attachment, main-

tain adequate water pressure so that thereis a steady flow of water from the coolingwater pilot hole.

ZMU04261

1. Flushing attachment


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Maintenance

65

● If the overheat alert device is activated, turnthe engine off, and consult your Yamahadealer.

6. Run the engine at a fast idle for a fewminutes in neutral position while supply-ing fresh water.

7. Just prior to turning off the engine, quicklyspray “Yamaha Stor-Rite Engine FoggingOil” alternately into the intake silencer orthe fogging hole of the silencer cover, ifequipped. When properly done, the en-gine will smoke excessively and almoststall.

8. Remove the flushing attachment andwipe off any excess water.

9. Install the top cowling and propeller.10. Drain the cooling water completely out of

the motor. Clean the body thoroughly.

TIP:A flushing attachment is available from yourYamaha dealer.EMU28402

Lubrication1. Install the spark plug(s) and torque to

proper specification. For information onspark plug installation, see page 73.

2. Change the gear oil. For instructions, seepage 78. Inspect the oil for the presenceof water that indicates a leaky seal. Sealreplacement should be performed by anauthorized Yamaha dealer prior to use.

3. Grease all grease fittings. For further de-tails, see page 71.

TIP:For long-term storage, fogging the enginewith oil is recommended. Contact yourYamaha dealer for information about foggingoil and procedures for your engine.

EMU28423

Cleaning and anticorrosion measures1. Wash down the exterior of the outboard

motor with fresh water and dry off com-pletely. NOTICE: Do not spray waterinto the air intake. [ECM01840]

2. Spray the outboard motor exterior with“Yamaha Silicone Protectant”.

3. Wax the cowling with a non-abrasive waxsuch as “Yamaha Silicone Wax”.

EMU42550

Flushing power unitPerform this procedure right after operationfor the most thorough flushing.

NOTICEECM01530

Do not perform this procedure while theengine is running. The water pump may bedamaged and severe damage from over-heating can result.

1. After shutting off the engine, unscrew thegarden hose connector from the fitting onthe bottom cowling.


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2. Screw the garden hose adapter onto agarden hose, which is connected to afresh water supply, and then connect it tothe garden hose connector.

3. With the engine off, turn on the water tapand let the water flush through the cool-ing passages for about 15 minutes. Turnoff the water and disconnect the gardenhose adapter from the garden hose con-nector.

4. Reinstall the garden hose connector ontothe fitting on the bottom cowling. Tightenthe connector securely. NOTICE: Do notleave the garden hose connectorloose on the bottom cowling fitting orlet the hose hang free during normaloperation. Water will leak out of theconnector instead of cooling the en-gine, which can cause serious over-

heating. Be sure the connector istightened securely on the fitting afterflushing the engine. [ECM00541]

TIP:● When flushing the engine with the boat in

the water, tilting up the outboard motor untilit is completely out of the water will achievebetter results.

● F200, LF200, F225, LF225: For coolingsystem flushing instructions, see page 63.

EMU28452

Cleaning the outboard motor After use, wash the exterior of the outboardmotor with fresh water. Flush the cooling sys-tem with fresh water.

EMU28461

Checking painted surface of outboard motorCheck the outboard motor for scratches,nicks, or flaking paint. Areas with damagedpaint are more likely to corrode. If necessary,clean and paint the areas. A touch-up paint isavailable from your Yamaha dealer.EMU2848B

Periodic maintenance

WARNINGEWM01871

These procedures require mechanicalskills, tools, and supplies. If you do nothave the proper skills, tools, or supplies to

1. Fitting2. Garden hose connector3. Garden hose adapter


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67

perform a maintenance procedure, have aYamaha dealer or other qualified mechan-ic do the work.The procedures involve disassemblingthe motor and exposing dangerous parts.To reduce the risk of injury from moving,hot, or electrical parts:● Turn off the engine and keep the key(s)

and engine shut-off cord (lanyard) withyou when you perform maintenance un-less otherwise specified.

● The power trim and tilt switches operateeven when the ignition key is off. Keeppeople away from the switches whenev-er working around the motor. When themotor is tilted, keep away from the areaunder it or between it and the clampbracket. Be sure no one is in this areabefore operating the power trim and tiltmechanism.

● Allow the engine to cool before handlinghot parts or fluids.

● Always completely reassemble the mo-tor before operation.

Maintenance, replacement, or repair of theemission control devices and systemsmay be performed by any marine enginerepair establishment or individual. All war-ranty repairs, however, including those tothe emission control system, must be per-formed by an authorized Yamaha marinedealership.A service manual is available for purchasethrough your Yamaha dealer for owners whohave the mechanical skills, tools, and otherequipment necessary to perform mainte-nance not covered by this owner’s manual.

EMU28511

Replacement partsIf replacement parts are necessary, use onlygenuine Yamaha parts or parts of equivalentdesign and quality. Any part of inferior qualitymay malfunction, and the resulting loss ofcontrol could endanger the operator and pas-sengers. Yamaha genuine parts and acces-sories are available from your Yamahadealer.EMU35521

Maintenance interval guidelinesThe service intervals provided in the Mainte-nance Chart were developed based upon“typical” use that includes operating at variedspeeds, with sufficient time for engine warmup and cool-down, a medium to light load, andan average cruising speed near the 3000 to4000 rpm range. As with any engine, howev-er, if your normal operating conditions are dif-ferent, you should consider service moreoften than shown, especially how often youchange your engine oil and gear oil. Exam-ples might include extended wide-open-throt-tle use or long periods of trolling or idling,carrying heavy loads, or frequent starting andstopping or shifting. More frequent mainte-nance will often pay off many times over in in-creased engine life and greater ownersatisfaction. Consult your Yamaha dealer foradditional maintenance recommendations.


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EMU34446

Maintenance chart 1TIP:● Refer to the sections in this chapter for explanations of each owner-specific action.● The maintenance cycle on these charts assume usage of 100 hours per year and regular

flushing of the cooling water passages. Maintenance frequency should be adjusted when op-erating the engine under adverse conditions such as extended trolling.

● Disassembly or repairs may be necessary depending on the outcome of maintenancechecks.

● Expendable or consumable parts and lubricants will lose their effectiveness over time andthrough normal usage regardless of the warranty period.

● When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine shouldbe flushed with clean water after each use.

The “ ” symbol indicates the check-ups which you may carry out yourself.The “ ” symbol indicates work to be carried out by your Yamaha dealer.

Item Actions

Initial Every

20 hours (3 months)

100 hours (1 year)

300 hours (3 years)

500 hours (5 years)

Anode(s) (external) Inspection or replace-ment as necessary

Anode(s) (cylinder head, thermostat cov-er)

Inspection or replace-ment as necessary

Anodes (exhaust cover, cooling water passage cover, Rectifier Regula-tor cover)

Replacement

Battery (electrolyte lev-el, terminal) Inspection

Battery (electrolyte lev-el, terminal)

Fill, charging or replac-ing as necessary

Cooling water leakage Inspection or replace-ment as necessary

Cowling lock lever Inspection

Engine starting condi-tion/noise Inspection

Engine idle speed/noise Inspection

Engine oil Replacement

Engine oil filter (car-tridge) Replacement

Fuel filter (can be dis-assembled)



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69

Fuel line (High pres-sure) Inspection

Fuel line (High pres-sure)


Fuel line (Low pres-sure) Inspection

Fuel line (Low pres-sure)


Fuel pump Inspection or replace-ment as necessary

Fuel/engine oil leakage Inspection

Gear oil Replacement

Greasing points Greasing

Impeller/water pump housing


Impeller/water pump housing Replacement

OCV (Oil Control Valve) filter Replacement

Power trim and tilt unit Inspection

Propeller/propeller nut/cotter pin


PCV (Pressure Con-trol Valve)


Shift link/shift cableInspection, adjustment or replacement as nec-essary

Spark plug(s) Inspection or replace-ment as necessary

Spark plug caps/spark plug wires


Water from the cooling water pilot hole Inspection

Throttle link/throttle ca-ble/throttle pick-up tim-ing

Inspection, adjustment or replacement as nec-essary

Thermostat Inspection or replace-ment as necessary

Timing belt Inspection or replace-ment as necessary

Item Actions

Initial Every

20 hours (3 months)

100 hours (1 year)

300 hours (3 years)

500 hours (5 years)


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70

EMU34451

Maintenance chart 2

Valve clearance Inspection and adjust-ment

Cooling water inlet Inspection

Main switch/stop switch/choke switch


Wire harness connec-tions/wire coupler con-nections


(Yamaha) Meter/gauge Inspection

Item ActionsEvery

1000 hours

Exhaust guide/exhaust manifold


Timing belt Replacement

Item Actions

Initial Every

20 hours (3 months)

100 hours (1 year)

300 hours (3 years)

500 hours (5 years)


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Maintenance

71

EMU28934

GreasingYamaha marine grease (Water resistant grease)F200, LF200, F225, LF225


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73

EMU30778

Cleaning and adjusting spark plugThe spark plug is an important engine compo-nent and is easy to inspect. The condition ofthe spark plug can indicate something aboutthe condition of the engine. For example, if thecenter electrode porcelain is very white, thiscould indicate an intake air leak or carburetionproblem in that cylinder. Do not attempt to di-agnose any problems yourself. Instead, takethe outboard motor to a Yamaha dealer. Youshould periodically remove and inspect thespark plug because heat and deposits willcause the spark plug to slowly break downand erode.1. Remove the bolts to remove the ECM

(Electronic control module) cover.

2. Remove the bolts that are securing theignition coil, and then remove the ignitioncoil. Do not use any tools to remove or in-stall the ignition coil, otherwise the igni-tion coil coupler may get damaged.

3. Remove the spark plug. If electrode ero-sion becomes excessive, or if carbon andother deposits are excessive, you shouldreplace the spark plug with another of thecorrect type. WARNING! When remov-ing or installing a spark plug, be care-ful not to damage the insulator. Adamaged insulator could allow exter-nal sparks, which could lead to explo-sion or fire. [EWM00561]

4. Be sure to use the specified spark plug,otherwise the engine may not operateproperly. Before fitting the spark plug,measure the electrode gap with a wirethickness gauge; replace it if out of spec-ification.

1. Bolt2. ECM (Electronic Control Module) cover

1. Bolt2. Ignition coil

Standard spark plug:LFR6A-11


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5. When fitting the plug, wipe off any dirtfrom the threads, and then screw it in tothe correct torque.

TIP:If a torque-wrench is not available when youare fitting a spark plug, a good estimate of thecorrect torque is 1/4 to 1/2 turn past finger-tight. Have the spark plug adjusted to the cor-rect torque as soon as possible with a torque-wrench.6. Install the ignition coil and tighten the

bolts.

7. Install the ECM (Electronic control mod-ule) cover and tighten the bolts.

EMU29044

Inspecting idle speed

WARNINGEWM00451

● Do not touch or remove electrical partswhen starting or during operation.

● Keep hands, hair, and clothes away fromthe flywheel and other rotating partswhile the engine is running.

NOTICEECM00490

This procedure must be performed whilethe outboard motor is in the water. A flush-ing attachment or test tank can be used.

If the boat is not equipped with a tachometerfor the outboard motor, use a diagnostic ta-chometer for this procedure. Results mayvary depending on whether testing is conduct-ed with the flushing attachment, in a test tank,or with the outboard motor in the water.1. Start the engine and allow it to warm up

fully in neutral until it is running smoothly.2. Once the engine has warmed up, verify

whether the idle speed is set to specifica-tion. For idle speed specifications, seepage 13. If you have difficulty verifyingthe idle speed, or the idle speed requiresadjustment, consult a Yamaha dealer orother qualified mechanic.

EMU37495

Changing engine oil

NOTICEECM01710

Change the engine oil after the first 20hours of operation or 3 months, and every100 hours or at 1-year intervals thereafter.Otherwise the engine will wear quickly.

The engine oil should be extracted with an oilchanger.

1. Spark plug gap2. Spark plug part number3. Spark plug I.D. mark (NGK)

Spark plug gap:1.0–1.1 mm (0.039–0.043 in)

Spark plug torque:25 Nm (2.55 kgf-m, 18.4 ft-lb)




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1. Put the outboard motor in an upright po-sition (not tilted). NOTICE: If the out-board motor is not level, the oil levelindicated on the oil dipstick may notbe accurate. [ECM01861]

2. Start the engine. Warm it up and keep theidle speed for 5-10 minutes.

3. Stop the engine and leave it for 5-10 min-utes.

4. Remove the top cowling.5. Remove the oil filler cap. Pull out the dip-

stick and use the oil changer to extractthe oil completely.

6. Add the correct amount of oil through thefiller hole. Put back the filler cap and thedipstick. NOTICE: Overfilling the oilcould cause leakage or damage. If theoil level is above the upper level mark,drain until the level meets the speci-fied capacity. [ECM01850]

7. Leave the outboard motor for 5-10 min-utes.

8. Remove oil dipstick and wipe it clean.9. Insert the dipstick and remove it again.

Be sure to completely insert the dipstickinto the dipstick guide, otherwise the oillevel measurement will be incorrect.

10. Recheck the oil level using the dipstick tobe sure the level falls between the upperand lower marks. Consult your Yamahadealer if the oil level is out of specified lev-el.1. Oil changer

1. Oil filler cap

Recommended engine oil:YAMALUBE 4-M FC-W or 4-stroke outboard motor oilEngine oil quantity (without oil filter re-placement):

4.5 L (4.76 US qt, 3.96 Imp.qt)Engine oil quantity (with oil filter re-placement):

4.7 L (4.97 US qt, 4.14 Imp.qt)


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11. Start the engine and make sure that thelow oil pressure-alert indicator remainsoff. Also, make sure that there are no oilleaks. NOTICE: If the low oil pressure-alert indicator comes on or if there areoil leaks, stop the engine and find thecause. Continued operation with aproblem could cause severe enginedamage. Consult your Yamaha dealerif the problem cannot be located andcorrected. [ECM01622]

12. Dispose of used oil according to localregulations.

TIP:● For more information on the disposal of

used oil, consult your Yamaha dealer.● Change the oil more often when operating

the engine under adverse conditions suchas extended trolling.

EMU29114

Inspecting wiring and connectors● Inspect that each connector is engaged se-

curely.● Inspect that each ground lead is properly

secured.

EMU29174

Checking propeller

WARNINGEWM01881

You could be seriously injured if the en-gine accidentally starts when you are nearthe propeller. Before inspecting, remov-ing, or installing the propeller, place theshift control in neutral, turn the mainswitch to “ ” (off) and remove the key,and remove the clip from the engine shut-off switch. Turn off the battery cut-offswitch if your boat has one.

Do not use your hand to hold the propellerwhen loosening or tightening the propellernut. Put a wood block between the anti-cavi-tation plate and the propeller to prevent thepropeller from turning.

1. Oil dipstick2. Lower level mark3. Upper level mark

1 3

2

ZMU07057


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Maintenance

77

Checkpoints● Check each of the propeller blades for ero-

sion from cavitation or ventilation, or otherdamage.

● Check the propeller shaft for damage.● Check the splines for wear or damage.● Check for fish line tangled around the pro-

peller shaft.

● Check the propeller shaft oil seal for dam-age.

EMU42631

Removing propeller1. Straighten the cotter pin and pull it out us-

ing a pair of pliers.2. Remove the propeller nut, washer, and

spacer. WARNING! Do not use yourhand to hold the propeller when loos-ening the propeller nut. [EWM01890]

3. Remove the propeller, spacer (ifequipped), and thrust washer.

EMU41980

Installing propeller

WARNINGEWM00770

On counter rotation models, be sure touse a propeller intended for counterclock-wise rotation. These propellers are identi-fied with the letter “L” after the sizeindication on the propeller. Otherwise theboat could move in the opposite directionfrom that expected.

NOTICEECM00501

Make sure to use a new cotter pin andbend the ends over securely. Otherwise,the propeller could come off during opera-tion and be lost.

1. Apply Yamalube Marine Grease to thepropeller shaft.

2. Install the thrust washer and propeller onthe propeller shaft. NOTICE: Make sureto install the thrust washer before in-

1. Cotter pin2. Propeller nut3. Washer4. Spacer5. Propeller6. Thrust washer

4 3 2

1

56

ZMU07269


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Maintenance

78

stalling the propeller. Otherwise, thelower case and propeller boss couldbe damaged. [ECM01881]

3. Install the spacer, washer, and propellernut. Tighten the propeller nut to the spec-ified torque.

TIP:Make sure to align the protrusions on thespacer with the cutout areas of the propeller.4. Align the propeller nut slot with the pro-

peller shaft hole. Insert a new cotter pin inthe hole and bend the cotter pin ends.NOTICE: Do not reuse the cotter pin.Otherwise, the propeller can come offduring operation. [ECM01891]

TIP:If the propeller nut slot does not align with thepropeller shaft hole after tightening the pro-peller nut to the specified torque, tighten thenut further to align the slot with the hole.EMU42572

Changing gear oilF200, LF200, F225, LF225

WARNINGEWM00800

● Be sure the outboard motor is securelyfastened to the transom or a stablestand. You could be severely injured ifthe outboard motor falls on you.

● Never get under the lower unit while it istilted, even when the tilt support lever orknob is locked. Severe injury could oc-cur if the outboard motor accidentallyfalls.

1. Tilt the outboard motor so that the gear oildrain screw is at the lowest point possi-ble.

2. Place a suitable container under the gearcase.

3. Remove the gear oil drain screw and gas-ket. NOTICE: If there is an excessivequantity of metal particles on the mag-netic gear oil drain screw, this can in-dicate lower unit problem. Consultyour Yamaha dealer. [ECM01900]

1. Cotter pin2. Propeller nut3. Washer4. Spacer5. Propeller6. Thrust washer

Propeller nut tightening torque:55 Nm (5.61 kgf-m, 40.6 ft-lb)

ZMU07549

4 3 2

1

56

1. Cotter pin

1

ZMU06956


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TIP:● If a magnetic gear oil drain screw is

equipped, remove all metal particles fromthe screw before installing it.

● Always use new gaskets. Do not reuse theremoved gaskets.

4. Remove the oil level plug and gasket toallow the oil to drain completely.NOTICE: Check the used gear oil afterit has been drained. If the gear oil ismilky or contains water or a largeamount of metal particles, the gearcase may be damaged. Have aYamaha dealer check and repair theoutboard motor. [ECM00713]

TIP:For disposal of used oil, consult your Yamahadealer.5. Put the outboard motor in a vertical posi-

tion. Using a flexible or pressurized fillingdevice, inject the gear oil into the gear oildrain screw hole.

6. Put a new gasket on the oil level plug.When the oil begins to flow out of the oillevel plug hole, insert and tighten the oillevel plug.

7. Put a new gasket on the gear oil drainscrew. Insert and tighten the gear oildrain screw.

1. Gear oil drain screw2. Oil level plug3. Gasket



Gear oil quantity:F200A 1.150 L (1.216 US qt, 1.012 Imp.qt)F225A 1.150 L (1.216 US qt, 1.012 Imp.qt)LF200A 1.000 L (1.057 US qt, 0.880 Imp.qt)LF225A 1.000 L (1.057 US qt, 0.880 Imp.qt)

Tightening torque:9 Nm (0.92 kgf-m, 6.6 ft-lb)



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F250, LF250

WARNINGEWM00800

● Be sure the outboard motor is securelyfastened to the transom or a stablestand. You could be severely injured ifthe outboard motor falls on you.

● Never get under the lower unit while it istilted, even when the tilt support lever orknob is locked. Severe injury could oc-cur if the outboard motor accidentallyfalls.

1. Tilt the outboard motor so that the gear oildrain screw is at the lowest point possi-ble.

2. Place a suitable container under the gearcase.

3. Remove the cooling water inlet covers onboth sides of the gear case. Be carefulnot to lose the bolt and nut.

4. Remove the gear oil drain screw and gas-ket. The screw is magnetic so a smallquantity of metal particles on the end ofthe screw is normal. Simply removethem. NOTICE: If there is an excessivequantity of metal particles on the mag-netic gear oil drain screw, this can in-dicate lower unit problem. Consultyour Yamaha dealer. [ECM01900]

5. Remove the oil level plug and gasket toallow the oil to drain completely.NOTICE: Check the used gear oil afterit has been drained. If the gear oil ismilky or contains water or a largeamount of metal particles, the gearcase may be damaged. Have aYamaha dealer check and repair theoutboard motor. [ECM00713]

TIP:For disposal of used oil, consult your Yamahadealer.6. Put the outboard motor in a vertical posi-

tion. Using a flexible or pressurized fillingdevice, inject the gear oil into the gear oildrain screw hole.

1. Oil level plug2. Gasket3. Cooling water inlet cover4. Bolt5. Gear oil drain screw6. Nut

5 2

6

34

3

1

2

ZMU05487


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7. Put a new gasket on the oil level plug.When the oil begins to flow out of the oillevel plug hole, insert and tighten the oillevel plug.

8. Put a new gasket on the gear oil drainscrew. Insert and tighten the gear oildrain screw.

9. Securely install the cooling water inletcovers on both sides of the gear case us-ing the bolt and nut removed earlier.

EMU29314

Inspecting and replacing anode(s)Yamaha outboard motors are protected fromcorrosion by sacrificial anodes. Inspect theexternal anodes periodically. Remove scalesfrom the surfaces of the anodes. Consult aYamaha dealer for replacement of externalanodes.

NOTICEECM00720

Do not paint anodes, as this would renderthem ineffective.



Gear oil quantity:F250A 1.150 L (1.216 US qt, 1.012 Imp.qt)LF250A 1.000 L (1.057 US qt, 0.880 Imp.qt)



Tightening torque:2.0 Nm (0.20 kgf-m, 1.5 ft-lb)


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TIP:Inspect ground leads attached to external an-odes on equipped models. Consult a Yamahadealer for inspection and replacement of inter-nal anodes attached to the power unit.EMU29323

Checking battery (for electric start models)

WARNINGEWM01902

Battery electrolyte is poisonous and caus-tic, and batteries generate explosive hy-drogen gas. When working near thebattery:● Wear protective eye gear and rubber

gloves.● Do not smoke or bring any other source

of ignition near the battery.

The procedure for checking the battery variesfor different batteries. This procedure con-tains typical checks that apply to many batter-ies, but you should always refer to the batterymanufacturer’s instructions.

NOTICEECM01920

A poorly maintained battery will quicklydeteriorate.

1. Check the electrolyte level.

2. Check the battery’s charge. If your boat isequipped with the digital speedometer,the voltmeter and low battery alert func-tions will help you monitor the battery’scharge. If the battery needs charging,consult your Yamaha dealer.

3. Check the battery connections. Theyshould be clean, secure, and covered byan insulating cover. WARNING! Badconnections can produce shorting orarcing and cause an explosion. [EWM01912]

EMU35495

Connecting the battery

WARNINGEWM00572

Mount the battery holder securely in a dry,well-ventilated, vibration-free location inthe boat. Install a fully charged battery inthe holder.


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NOTICEECM01124

Do not reverse the battery cables. Other-wise, the electrical parts could be dam-aged.

1. Make sure the main switch (on applicablemodels) is “ ” (off) before working onthe battery.

2. Connect the red battery cable to thePOSITIVE (+) terminal first. Then con-nect the black battery cable to the NEGA-TIVE (-) terminal.

3. The electrical contacts of the battery andcables must be clean and properly con-nected, or the battery will not start the en-gine.

Connecting an accessory battery (optional) If connecting an accessory battery, consultyour Yamaha dealer about correct wiring. Forthe fuse size, see ABYC (E-11).

Single engine

1. Red cable2. Black cable3. Battery

ZMU01811

1

23

1. Isolator lead with circuit protection2. Red cable3. Black cable4. Fuse5. Battery for accessories6. Battery for starting7. Negative connecting cable

2 1

7

6 5

3

4

ZMU05939


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84

Twin engines

EMU29371

Disconnecting the battery1. Turn off the battery cut-off switch (if

equipped) and main switch. NOTICE: Ifthey are left on, the electrical systemcan be damaged. [ECM01930]

2. Disconnect the negative cable(s) fromthe negative (-) terminal. NOTICE: Al-ways disconnect all negative (-) ca-bles first to avoid a short circuit anddamage to the electrical system.[ECM01940]

3. Disconnect the positive cable(s) and re-move the battery from the boat.

4. Clean, maintain, and store the battery ac-cording to the manufacturer’s instruc-tions.

1. Starboard side engine2. Port side engine3. Red cable4. Black cable5. Isolator leads with circuit protection6. Fuse7. Battery for starting8. Battery for accessories9. Negative connecting cable

ZMU05941

1

3

9

34

6

4

2

5

7 8 7


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Trouble Recovery

85

EMU29427

TroubleshootingA problem in the fuel, compression, or ignitionsystems can cause poor starting, loss of pow-er, or other problems. This section describesbasic checks and possible remedies, and cov-ers all Yamaha outboard motors. Thereforesome items may not apply to your model.If your outboard motor requires repair, bring itto your Yamaha dealer.If the engine trouble-alert indicator is flashing,consult your Yamaha dealer.

Starter will not operate.Q. Is battery capacity weak or low?A. Check battery condition. Use battery of rec-ommended capacity.

Q. Are battery connections loose or corrod-ed?A. Tighten battery cables and clean batteryterminals.

Q. Is fuse for electric start relay or electric cir-cuit blown?A. Check for cause of electric overload andrepair. Replace fuse with one of correct am-perage.

Q. Are starter components faulty?A. Have serviced by a Yamaha dealer.

Q. Is shift lever in gear?A. Shift to neutral.

Engine will not start (starter operates).Q. Is fuel tank empty?A. Fill tank with clean, fresh fuel.

Q. Is fuel contaminated or stale?A. Fill tank with clean, fresh fuel.

Q. Is fuel filter clogged?A. Clean or replace filter.

Q. Is starting procedure incorrect?A. See page 53.

Q. Has fuel pump malfunctioned?A. Have serviced by a Yamaha dealer.

Q. Are spark plug(s) fouled or of incorrecttype?A. Inspect spark plug(s). Clean or replace withrecommended type.

Q. Are spark plug cap(s) fitted incorrectly?A. Check and re-fit cap(s).

Q. Is ignition wiring damaged or poorly con-nected?A. Check wires for wear or breaks. Tighten allloose connections. Replace worn or brokenwires.

Q. Are ignition parts faulty?A. Have serviced by a Yamaha dealer.

Q. Is engine shut-off cord (lanyard) not at-tached?A. Attach cord.

Q. Are engine inner parts damaged?A. Have serviced by a Yamaha dealer.

Engine idles irregularly or stalls.Q. Are spark plug(s) fouled or of incorrecttype?A. Inspect spark plug(s). Clean or replace withrecommended type.

Q. Is fuel system obstructed?


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A. Check for pinched or kinked fuel line or oth-er obstructions in fuel system.



Q. Have ignition parts failed?A. Have serviced by a Yamaha dealer.

Q. Has alert system activated?A. Find and correct cause of alert.

Q. Is spark plug gap incorrect?A. Inspect and adjust as specified.


Q. Is specified engine oil not being used?A. Check and replace oil as specified.

Q. Is thermostat faulty or clogged?A. Have serviced by a Yamaha dealer.

Q. Are carburetor adjustments incorrect?A. Have serviced by a Yamaha dealer.

Q. Is fuel pump damaged?A. Have serviced by a Yamaha dealer.

Q. Is air vent screw on fuel tank closed?A. Open air vent screw.

Q. Is choke knob pulled out?

A. Return to home position.

Q. Is motor angle too high?A. Return to normal operating position.

Q. Is carburetor clogged?A. Have serviced by a Yamaha dealer.

Q. Is fuel joint connection incorrect?A. Connect correctly.

Q. Is throttle valve adjustment incorrect?A. Have serviced by a Yamaha dealer.

Q. Is battery cable disconnected?A. Connect securely.

Alert buzzer sounds or indicator lights.Q. Is cooling system clogged?A. Check water intake for restriction.

Q. Is engine oil level low?A. Fill oil tank with specified engine oil.

Q. Is heat range of spark plug incorrect?A. Inspect spark plug and replace it with rec-ommended type.

Q. Is specified engine oil not being used?A. Check and replace oil with specified type.

Q. Is engine oil contaminated or deteriorated?A. Replace oil with fresh, specified type.

Q. Is oil filter clogged?A. Have serviced by a Yamaha dealer.

Q. Has oil feed/injection pump malfunc-tioned?A. Have serviced by a Yamaha dealer.


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Q. Is load on boat improperly distributed?A. Distribute load to place boat on an evenplane.

Q. Is water pump or thermostat faulty?A. Have serviced by a Yamaha dealer.

Q. Is there excess water in fuel filter cup?A. Drain filter cup.

Engine power loss.Q. Is propeller damaged?A. Have propeller repaired or replaced.

Q. Is propeller pitch or diameter incorrect?A. Install correct propeller to operate outboardat its recommended speed (r/min) range.

Q. Is trim angle incorrect?A. Adjust trim angle to achieve most efficientoperation.

Q. Is motor mounted at incorrect height ontransom?A. Have motor adjusted to proper transomheight.

Q. Has alert system activated?A. Find and correct cause of alert.

Q. Is boat bottom fouled with marine growth?A. Clean boat bottom.

Q. Are spark plug(s) fouled or of incorrecttype?A. Inspect spark plug(s). Clean or replace withrecommended type.

Q. Are weeds or other foreign matter tangledon gear housing?

A. Remove foreign matter and clean lowerunit.

Q. Is fuel system obstructed?A. Check for pinched or kinked fuel line or oth-er obstructions in fuel system.



Q. Is spark plug gap incorrect?A. Inspect and adjust as specified.


Q. Have electrical parts failed?A. Have serviced by a Yamaha dealer.

Q. Is specified fuel not being used?A. Replace fuel with specified type.

Q. Is specified engine oil not being used?A. Check and replace oil with specified type.

Q. Is thermostat faulty or clogged?A. Have serviced by a Yamaha dealer.

Q. Is air vent screw closed?A. Open the air vent screw.

Q. Is fuel pump damaged?A. Have serviced by a Yamaha dealer.

Q. Is fuel joint connection incorrect?


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A. Connect correctly.

Q. Is heat range of spark plug incorrect?A. Inspect spark plug and replace it with rec-ommended type.

Q. Is high pressure fuel pump drive belt bro-ken?A. Have serviced by a Yamaha dealer.

Q. Is engine not responding properly to shiftlever position?A. Have serviced by a Yamaha dealer.

Engine vibrates excessively.Q. Is propeller damaged?A. Have propeller repaired or replaced.

Q. Is propeller shaft damaged?A. Have serviced by a Yamaha dealer.

Q. Are weeds or other foreign matter tangledon propeller?A. Remove and clean propeller.

Q. Is motor mounting bolt loose?A. Tighten bolt.

Q. Is steering pivot loose or damaged?A. Tighten or have serviced by a Yamahadealer.EMU29433

Temporary action in emergencyEMU29441

Impact damage

WARNINGEWM00870

The outboard motor can be seriously dam-aged by a collision while operating ortrailering. Damage could make the out-board motor unsafe to operate.

If the outboard motor hits an object in the wa-ter, follow the procedure below.

1. Stop the engine immediately.2. Check the control system and all compo-

nents for damage. Also, check the boatfor damage.

3. Whether damage is found or not, returnto the nearest harbor slowly and careful-ly.

4. Have a Yamaha dealer check the out-board motor before operating it again.

EMU29453

Running single engine (twin engines)When using only one engine in an emergen-cy, be sure to keep the unused one tilted upand operate the other engine at low speed.

NOTICEECM00370

If the boat is operated with one engine inthe water but not running, water may runinto the exhaust pipe due to wave action,causing engine trouble.


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TIP:When you are maneuvering at low speed,such as near a dock, it is recommended thatboth engines be running with one in neutralgear if possible.EMU29474

Replacing fuseIf a fuse has blown, remove the electrical cov-er, open the fuse holder and remove the fusewith a fuse puller (if equipped). Replace it witha spare one of the proper amperage.

WARNINGEWM00631

Substituting an incorrect fuse or a piece ofwire could allow excessive current flow.This could cause electric system damageand a fire hazard.

Consult your Yamaha dealer if the new fuseimmediately blows again.

1. Electrical cover2. Fuse puller3. Spare fuse (10 A, 15 A, 20 A, 30 A, 60 A)

1. Electric throttle valve / ECM (Electronic con-trol module) fuse (10 A)

2. Ignition coil / Fuel injector / Variable cam-shaft timing / ECM (Electronic Control Mod-ule) fuse (30 A)

3. Main switch / PTT switch fuse (20 A)4. Starter relay fuse (30 A)5. Fuel feed pump fuse (10 A)6. Fuel pump fuse (15 A)


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EMU29525

Power trim and tilt will not operateIf the engine cannot be tilted up or down withthe power trim and tilt because of a dis-charged battery or a failure with the powertrim and tilt unit, the engine can be tilted man-ually.1. Loosen the manual valve screw by turn-

ing it counterclockwise until it stops.

2. Put the engine in the desired position,then tighten the manual valve screw byturning it clockwise.

EMU31594

Water separator-alert indicator blinks while cruising

WARNINGEWM01500

Gasoline is highly flammable, and its va-pors are flammable and explosive.● Do not perform this procedure on a hot

or running engine. Allow the engine tocool.

● There will be fuel in the fuel filter. Keepaway from sparks, cigarettes, flames orother sources of ignition.

● This procedure will allow some fuel tospill. Catch fuel in a rag. Wipe up anyspilled fuel immediately.

● The fuel filter must be reassembledcarefully with the O-ring, filter cup, andhoses in place. Improper assembly orreplacement could result in a fuel leak,which could result in a fire or explosionhazard.

If the water separator-alert indicator on theCommand Link Multifunction Tachometerblinks, perform the following procedure.

1. Stop the engine.2. Remove the top cowling.3. Remove the holder.

7. Engine main fuse (60 A)8. Isolator fuse (60 A)

1. Manual valve screw

1ZMU01905

1. Water separator-alert indicator


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4. Disconnect the water detection switchcoupler. NOTICE: Be careful not to getany water on the water detectionswitch coupler, otherwise a malfunc-tion could occur. [ECM01950]

5. Unscrew the filter cup from the filter hous-ing. NOTICE: Be careful not to twist thewater detection switch lead when un-screwing the filter cup. [ECM01960]

6. Drain the water in the filter cup by soakingit up with a rag.

7. Firmly screw the filter cup onto the filterhousing. NOTICE: Be careful not totwist the water detection switch leadwhen screwing the filter cup onto thefilter housing. [ECM01970]

8. Connect the water detection switch cou-pler securely until a click is heard.

9. Fasten the water detection switch leadwith the holder.

1. Holder

1. Water detection switch coupler

1. Filter cup2. Water detection switch lead

1. Water detection switch coupler

ZMU07550

1

2


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10. Install the top cowling.11. Start the engine and make sure that the

water separator-alert indicator remainsoff. Have a Yamaha dealer inspect theoutboard motor after returning to port.

EMU33501

Treatment of submerged motorIf the outboard motor is submerged, immedi-ately take it to a Yamaha dealer. Otherwisesome corrosion may begin almost immediate-ly. NOTICE: Do not attempt to run the out-board motor until it has been completelyinspected. [ECM00401]

1. Holder


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Consumer information

93

EMU29835

YAMAHA FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY

ZMU07048

Yamaha Motor Corporation, U.S.A. and Yamaha Motor Canada Ltd. (“Yamaha”) hereby warrant that new Yamaha four-stroke outboard motors will be free from defects in material and workmanship for the period of time stated herein, subject to certain stated limitations.

PERIOD OF WARRANTY. Any new Yamaha four-stroke outboard motor purchased from an authorized Yamaha dealer in the customer’s country of residence (United States or Canada) and registered with Yamaha will be warranted against defects in material or workmanship, subject to exclusions noted herein, for the following applicable period determined by type of use:

The second and third year of warranty (if applicable) shall be limited to covering the cost of parts and labor for major components only. The major components covered are:

WARRANTY REGISTRATION. To be eligible for warranty coverage, the outboard motor must be registered with Yamaha in the country of residence. Warranty registration can be accomplished by any authorized Yamaha Outboard Motor Dealer.

OBTAINING REPAIRS UNDER WARRANTY. During the period of warranty, any authorized Yamaha Outboard Motor Dealer in the country of residence will, free of charge, repair or replace, at Yamaha’s option, any parts adjudged defective by Yamaha due to faulty workmanship or material from the factory. All replaced parts will become the property of Yamaha. If the customer is temporarily using a U.S.-registered outboard motor in Canada, or a Canada-registered outboard motor in the United States, and it needs warranty repairs, the owner should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance. The local dealer will contact Yamaha on the owner’s behalf so that needed repairs can be made as quickly as possible.

CUSTOMER’S RESPONSIBILITY. Under the terms of this warranty, the customer will be responsible for ensuring that the outboard motor is properly operated, maintained, and stored as specified in the applicable Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.

Replacement parts used in warranty repairs will be warranted for the balance of the applicable warranty period.

• Pleasure use – three (3) years from the date of purchase.

Power Unit Section• Power Head• Intake Manifold• Carburetor Assembly and its Related Components• Fuel Injection System and its Related Components• Fuel and Oil Pump Assemblies• Ignition System (Standard and Microcomputer)Lower Unit Section Bracket Section• Exhaust System• Bracket System• Upper Casing• Power Trim and Tilt Assembly• Lower Unit Assembly

• Commercial application – one (1) year from the date of purchase. A commercial application is defined as any use of the outboard motor to generate income (excluding tournament fishing) or support business operations in any way during the warranty period, without regard to the type or percentage of commercial use. Yamaha reserves the right to modify incorrect registration data and reduce the warranty period to reflect commercial use.

• Yamaha peripheral equipment included with the motor, such as gauges, fuel tanks, and hoses, remote control boxes, and wiring external from the motor unit, will be warranted for one (1) year from the date of purchase for either pleasure or commercial use.


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94

ZMU07047

SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and anodes, are not covered by warranty. Charges for removal of the motor from a boat and transporting the motor to and from an authorized Yamaha Outboard Motor Dealer are excluded from warranty coverage.

EMISSION CONTROL WARRANTY (United States only). Yamaha warrants to the ultimate purchaser and any subsequent owner, that the emission control components on this engine are designed, built and equipped so as to conform at the time of sale with applicable regulations under section 213 of the Clean Air Act and that this engine is covered against defects in materials and workmanship which cause said engine to fail to conform with applicable exhaust emission regulations for five (5) years from the date of purchase or 175 hours of operation, whichever comes first. Evaporative components (e.g., hoses, fuel tank, fuel cap) are covered for three (3) years from the date of purchase. Some states have different emission control warranty provisions. As these vary from state to state, consult your Yamaha dealer or contact Yamaha Customer Relations at 1-866-894-1626 for more information.

TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha within ten (10) days of the transfer.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE/PROVINCE TO PROVINCE.

YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FROM THIS WARRANTY. SOME STATES/PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. ALSO EXCLUDED FROM THIS WARRANTY ARE ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING LOSS OF USE. SOME STATES/PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.

GENERAL EXCLUSIONS FROM WARRANTY. This warranty will not cover the repair of damage if the damage is a result of abuse or neglect of the product. Examples of abuse and neglect include, but are not limited to:1. Racing or competition use, modification of original parts, abnormal strain.2. Lack of proper maintenance and off season storage as described in the Owner’s Manual; installation of parts or accessories that are

not equivalent in design and quality to genuine Yamaha parts.3. Operation of the motor at an rpm other than specified, use of lubricants or oils that are not suitable for outboard motor use.4. Damage as a result of accidents, collisions, contact with foreign materials, or submersion.5. Growth of marine organism on motor surfaces.6. Normal deterioration.

Specific parts excluded from the second and third year of warranty (if applicable) are:• Top and Bottom Cowling• Electric Components (other than ignition system)• Rubber Components (such as hoses, tubes, rubber seals, fittings, and clamps)


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IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE U.S.A. OR CANADA

Welcome to the Yamaha Family!

Congratulations on the purchase of your new Yamaha products. Yamaha is commit-ted to exceptional customer satisfaction and we want your ownership experience to be a satisfying one. Please read the following warranty information to help ensure satisfaction with your Yamaha.

This model was manufactured with specifications appropriate for sale and use in the U.S.A. and Canada. Please note the following information:

Your Yamaha model may not be sold in some countries. Therefore, a Yamaha dealer outside the United States or Canada may not have all of the replacement parts or technical information available to provide proper service. This may unavoidably delay repairs. Thank you for your understanding should this happen.

TIP:

1. As explained in the Limited Warranty Statement, the Yamaha warranty covers your Yamaha when it is registered and used in your country of residence. If you are temporarily using a U.S.-registered outboard motor in Canada, or a Canada-registered outboard motor in the United States, and it needs warranty repairs, you should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance. The local dealer will contact Yamaha on the owner’s behalf so that needed repairs can be made as quickly as possible.

2. If you need repairs while temporarily using your Yamaha in another country, contact the local authorized Yamaha distributor for that country. Yamaha will work with that distributor to make the needed repairs as quickly as possible. If you have to pay for a repair that you believe your warranty would have covered at home, present all repair orders, receipts, or other related documents to your local dealer when you return home. He will be able to contact Yamaha on your behalf to see if any refund can be provided.

3. If your Yamaha is registered or used primarily outside the United States or Canada, the warranty printed in this manual does not apply to you. Contact the dealer who sold the Yamaha marine power unit to you for customer support information.

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©2019 Yamaha M


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For your best ownership experience, think Genuine Yamaha!

Genuine Yamaha Parts — Genuine Yamaha replacement parts are the exact same partsas the ones originally equipped on your vehicle, providing you with the performance and du-rability you have come to expect. Why settle for aftermarket parts that may not provide fullconfidence and satisfaction?

Genuine Yamaha Accessories — Yamaha only offers accessories that meet our high stan-dards for quality and performance. Buy with confidence, knowing your Genuine Yamaha Ac-cessories will fit right and perform right — right out of the box.

Yamalube — Take care of your Yamaha with legendary Yamalube oils, lubricants, and careproducts. They’re formulated and approved by the toughest judges we know: the Yamahaengineering teams that know your Yamaha from the inside out.

Genuine Yamaha Service Manuals — Get the same factory manual for your vehicle thatthe technicians at your authorized Yamaha dealer use. Service manuals are availablethrough your Yamaha dealer or you can order them directly through yamahapubs.com (USAonly).

Genuine Yamaha products are available only from your Yamaha dealer.

Find out more at yamaha–motor.com


©2019 Yamaha M


OWNER’S MANUALRead this manual carefully before operating this outboard motor. OWNER’S MANUAL...

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Transcript of OWNER’S MANUALRead this manual carefully before operating this outboard motor. OWNER’S MANUAL...