Yamaha C50A Manuel du propriétaire

C40A/C50ALIT-18626-04-75C40AC50AOWNER’S MANUALU.S.A.Edition 63D-9-15 hyoshi 01.4.18 2:09 PM y[W 1 (2,1)

E1-38 This product emits exhaust gases whichcontain carbon monoxide, a colorless,odorless gas which may cause braindamage or death when inhaled. Symp-

EMU00912*YAMAHA MOTOR CORPORATION, U.S.A.OUTBOARD MOTOR TWO YEAR LIMITED WARRANTYYamaha Motor Corporation, U.S.A. is proud of its heritage and reputat

SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs,shear pins, propellers, hubs,

CUSTOMER SERVICEIf your machine requires warranty service, you must take it to any authorized Yamaha outboard dealer within the continental UnitedStat

EMU01178IMPORTANT WARRANTY INFORMATIONIF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADAWelcome to the Yamaha Family!Congratulations on the purchase of y

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C40A/C50APrinted in JapanApril 2001—0.5 × 1 !63D-28199-15(40VET/50HET)(E)Printed on recycled paperOWN 63D-9-15 hyoshi 01.4.18 2:09 PM y[W 1 (1,1)

C40A/C50ALIT-18626-04-75C40AC50AOWNER’S MANUALU.S.A.Edition 63D-9-15 hyoshi 01.4.18 2:09 PM y[W 1 (2,1)

E1-48 When a swimmer is in the water nearyou shift into neutral and shut off theengine.8 Be informed about boating safety.Additional publications and

EMB30010IMPORTANT LABELSWARNING LABELS1E1-5202016*wqCAUTION LABELS2WARNING●Be sure shift control is in neutral before starting engine. (except 2HP)●

E1-6EMB40010BASIC BOATING RULES(Rules of the road)Just as there are rules which apply whenyou are driving on streets and high ways,there are waterway

E1-7RULES WHEN ENCOUNTERING VES-SELSThere are three main situations which youmay encounter with other vessels whichcould lead to a collision unless th

1-8its course and speed. You must stay outof its way until you are clear of it. Like-wise, if another vessel is passing you, youshould maintain your s

111A111Proceeding toward headof navigation from seawardCAN BUOYOdd number. Leave to port.ORSECONDARY CHANNEL BUOYSSTARTS NEW NUMBERING SYSTEMold new

1-10EMU00016FUELING INSTRUCTIONSwGASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE!8 Do not smoke when refueling, andkeep away from sparks,

1-11If knocking or pinging occurs, use a differ-ent brand of gasoline or premium unlead-ed fuel. If unleaded gasoline is not avail-able, then leaded r

1-12EMU01395PROPELLER SELECTIONThe performance of your outboard motorwill be critically affected by your choice ofpropeller, as an incorrect choice co

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1-13Yamaha outboard motors are fitted withpropellers chosen to perform well over arange of applications, but there may beuses where a propeller with a

1-14EEMU01209START-IN-GEAR PROTECTIONYamaha outboard motors or Yamahaapproved remote control units areequipped with start-in-gear protectiondevice(s).

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EMC00010Chapter 2BASIC COMPONENTSMAIN COMPONENTS...2-1OPERATIONS OF CONTROLS ANDOTHER FUNCTIONS ...

rwitoy!0uq101142*e2-1EEMU01206MAIN COMPONENTS1 Clamp bracket2 Anode3 Battery lead4 Cooling water inlet5 Trim tab6 Anti-cavitation plate7 Anode8 Trim a

2-2EEMC20010OPERATIONS OF CONTROLSANDOTHER FUNCTIONSEMC21111FUEL TANKIf your model was equipped with aportable fuel tank, its function is as fol-lows.

2-3E701036701011*wqertyuEMC80612REMOTE CONTROLBoth the shifter and the throttle are actu-ated by the remote control lever. In addi-tion, this control

2-4ENeutral throttle leverTo open the throttle without shifting intoeither Forward or Reverse, place theremote control lever in the Neutral posi-tion

E2-5EMC28210Engine stop lanyard switchThe lock-plate on the end of the lanyardmust be attached to the engine stopswitch for the engine to run. The lan

2-6EEMU01331Power Trim/Tilt SwitchThe power trim/tilt adjusts the motorangle in relation to the transom. Thepower trim/tilt switch is located on there

EThank you for choosing a Yamaha out-board motor. This Owner’s manual con-tains information needed for proper oper-ation, maintenance and care. A thor

EEMU01297TRIM ANGLE ADJUSTING RODThe position of the trim angle adjustingrod determines the minimum trim angleof the outboard motor in relation to the

EMD60010TILT SUPPORT LEVERTo keep the outboard motor in the tilted-up position, lock the tilt support lever tothe clamp bracket.E2-8403011EMD62010TOP

E2-9701054EMD80010WARNING SYSTEMcCDo not continue to operate the engine ifthe warning device has activated. Consultyour Yamaha dealer if the problem c

EMF00010Chapter 3OPERATIONINSTALLATION ...3-1Mounting the outboard motor...3-2FILLING FUEL AMD ENGINE OI

E3-1EMF10010INSTALLATIONcCIncorrect engine height or obstructions tosmooth water flow (such as the design orcondition of the boat or accessories sucha

E3-2EMU00176MOUNTING THE OUTBOARDMOTORwImproper mounting of the outboardmotor could result in hazardous condi-tions such as poor handling, loss of con

E3-3wOverpowering a boat may cause severeinstability. Do not install an outboardmotor with more horsepower than themaximum rating on the capacity plat

3-4EMU01019Ring Free Fuel AdditiveGasoline is a precise blend of many differ-ent substances, each chosen to give cer-tain characteristics. Gasoline bl

EMF35011*GASOLINE (PETROL) AND OILMIXINGPre-mix model1) Pour oil and gasoline into the fueltank, in that order.1 Engine oil2 Gasoline (Petrol)2) Then

E3-6cC8 Avoid using any oil other than the des-ignated type.8 Use a thoroughly blended fuel-oil mix-ture.8 If the mixture is not thoroughly blend-ed,

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E3-7EMF40111PRE-OPERATION CHECKSwIf any item in the pre-operation check isnot working properly, have it inspectedand repaired before operating the out

E3-8EMF50011BREAKING IN (RUNNING IN)ENGINEYour new engine requires a period ofbreak-in (running-in) to allow mating sur-faces of moving parts to wear-

E3-93) Second hour:Accelerate at full throttle onto plane,then reduce engine speed to three-quarter throttle (approximately 4,000r/min). Vary engine s

E3-10EMU01147STARTING ENGINEw8 Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clear of any obstructions.Be

E3-11902025N7010150002933) Squeeze the primer bulb with the out-let end up until you feel it becomefirm.EMU00247PROCEDURE FOR REMOTE CONTROL MODEL4) P

E3-12EMU00254Electric Start Model7) Turn the main switch to “START”,and hold it for a maximum of 5 sec-onds.8) Immediately the engine starts, releaset

E3-13EMG00210WARMING UP ENGINE1) Before beginning operation, allow theengine to warm up at idling speed for3 minutes. (Failure to do this willshorten

E3-14EMG20310SHIFTINGwBefore shifting, make sure there are noswimmers or obstacles in the water nearyou.cCTo change the shifting position from for-war

E3-15EMG38010STOPPING ENGINELet it cool off for a few minutes at idle orlow speed first. Stopping the engineimmediately after operating at high speedi

E3-16EMU01412TRIMMING OUTBOARDMOTORThe trim angle of the outboard motorhelps determine the position of the bowof the boat in the water. The correct tr

GENERAL INFORMATIONBASIC COMPONENTSOPERATIONMAINTENANCETROUBLE RECOVERYINDEXCONTENTSREAD THIS OWNER’S MANUAL CAREFULLYBEFORE OPERATING YOUR OUTBOARD M

E3-17ADJUSTING TRIM ANGLEUPDN701034UPDNqEMU01401Power Trim/Tilt Modelw8 Be sure all people are clear of the out-board motor when adjusting thetrim/til

E3-18EMU00282Bow UpWhen the boat is on plane, a bow-up atti-tude result in less drag, greater stabilityand efficiency. This is generally when thekeel

E3-19EMU01200TILTING UP/DOWNIf the engine will be stopped for sometime, or if the boat is moored in shallows,the engine should be tilted up to protect

E3-20EMU00293PROCEDURE FOR TILTING UPPower trim/tilt model1) Remove the fuel-line connection fromthe motor.2) Push the power trim/tilt switch “UP”unti

E3-21EMH60010CRUISING IN OTHER CONDITIONSCRUISING IN SALT WATERAfter operating in salt water, wash out thecooling-water passages with fresh waterto pr

EMK00010Chapter 4MAINTENANCESPECIFICATION DATA...4-1TRANSPORTING AND STORINGOUTBOARD MOTOR ...4-

4-1EEMK10011*SPECIFICATION DATAModelUnit C40TRAItem25 (2.5, 18)35 (3.5, 2.5)8Spark plug N•m (kgf•m, lb•ft)8Propeller nut N•m (kgf•m, lb•ft)DIMENSIONSP

4-2EC50TRA — —25 (2.5, 18)35 (3.5, 2.5)670 (26.4)360 (14.2)1,319 (51.9)533 (21.0)87 (192)4,500 ~ 5,50036.8 (50) at 5,000 r/min750 ~ 8502-stroke, L3698

4-3EEMU01369TRANSPORTING ANDSTORINGOUTBOARD MOTORwLeaking fuel is a fire hazard. When trans-porting and storing the outboard motor,close the air vent

4-4EEMK16010STORING OUTBOARD MOTORWhen storing your Yamaha outboard forprolonged periods of time, (2 months orlonger), several important proceduresmus

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4-5E605024qww8 Do not touch or remove electrical partswhen starting or during operation.8 Keep hands, hair and clothes awayfrom flywheel and other rot

4-68 Flushing with the flushing attachment1) Remove the top cowling and silencercover. Remove the propeller.2) Install a flushing attachment to thelow

4-7EEMK26011Lubrication1) Remove the spark plugs, and spray a10 second spray of Yamaha “Stor-Rite Engine Fogging Oil” into eachcylinder. Grease the s

4-8EEMK29010Battery CarewBattery electrolyte is poisonous and dan-gerous, causing severe burns, etc. It con-tains sulfuric acid. Avoid contact withski

4-9EEMK32110PERIODIC MAINTENANCEwBe sure to turn off the engine when youperform maintenance unless otherwisespecified. If the owner is not familiar wi

4-10ECarburetor Cleaning 1 1 1 —Fuel filter Cleaning ● ● ● 4-15Fuel system Inspection ● ● 4-14Fuel tank *2 Cleaning ● —Throttle link Inspection/Adjust

4-11EEMU00366GREASINGYamaha marine grease(Water resistant grease) 63D-9-15-4 4/18/01 10:44 AM Page 12

4-12EEMU01202CLEANING AND ADJUSTING SPARKPLUGwWhen removing or installing a spark plug,be careful not to damage the insulator. Adamaged insulator coul

4-13When fitting the plug, always clean thegasket surface and use a new gasket.Wipe off any dirt from the threads andscrew in the spark plug to the co

4-14EEMK38010CHECKING FUEL SYSTEMwGasoline (petrol) and its vapors are highlyflammable and explosive. Keep awayfrom sparks, cigarettes, flames or othe

E23456EMB00010Chapter 1GENERALINFORMATIONIDENTIFICATION NUMBERS RECORD ..1-1Outboard motor serial number...1-1Key number...

4-15EEMK50011CLEANING FUEL FILTERwGasoline (petrol) is highly flammable, andits vapors are flammable and explosive.8 If you have any question about pr

4-16EEMK54110ADJUSTING IDLING SPEEDw8 Do not touch or remove electrical partswhen starting or during operation.8 Keep hands, hair and clothes awayfrom

4-17EMU01329REPLACING FUSEIf the fuse has blown on an Electric startmodel, open the fuse holder and replacethe fuse with a new one of proper amper-age

4-18EEMU00387CHECKING POWER TRIM AND TILTSYSTEMw8 Never get under the lower unit while itis tilted, even when the tilt-supportlever is locked. Severe

4-19EML08011CHECKING PROPELLERwYou could be seriously injured if theengine accidentally starts while you arenear the propeller.8 Before inspecting, re

4-20Installation1) Apply Yamaha Marine grease A(water-resistant grease) to the pro-peller-shaft.2) Slide the propeller over the propeller-shaft.cCBe s

4-21EEML20010CHANGING GEAR OILwNever get under the lower unit while it istilted, even when the tilt-support lever islocked. Severe injury could occur

4-22E5) With the outboard motor in an verti-cal position, using a flexible or pres-surized filling device, inject outboardmotor hypoid gear oil (SAE 9

4-23ETo clean the fuel tank1) Empty the fuel tank into an approvedgasoline (petrol) container.2) Pour a small amount of suitable sol-vent in the tank.

4-24EEML26010CHECKING BATTERY(for Electric start model)wBattery electrolytic fluid is dangerous; itcontains sulfuric acid and therefore is poi-sonous

E1-11401012904011*123YAMAHAqEMU00005IDENTIFICATION NUMBERSRECORDEMU00007OUTBOARD MOTOR SERIAL NUMBERThe outboard motor serial number isstamped on the

4-25E1) Check the electrolyte level at leastonce a month. Fill to the manufactur-er’s recommended level when neces-sary. Top up only with distilled wa

4-26EcC8 Make sure the main switch (on applica-ble models) is “OFF” before working onthe battery.8 Reversal of the battery leads will dam-age the rect

4-27E102025102024*EML42011MOTOR EXTERIORCleaning the Outboard MotorAfter use, wash the exterior of the out-board with fresh water. Flush the coolingsy

EMN00010Chapter 5TROUBLE RECOVERYTROUBLESHOOTING ...5-1TEMPORARY ACTION IN EMERGENCY ...

5-1EEMU01204¯TROUBLESHOOTINGA problem in the fuel, compression, or ignition systems can cause poor starting, loss ofpower, or other problems. The trou

5-2EC. Engine idlesirregularly or stalls.Trouble Possible Cause Remedy1. Spark plug(s) fouled or incorrecttype.2. Fuel system obstructed.3. Fuel conta

5-3ED. Warning buzzersounds orindicator lamplights.Trouble Possible Cause Remedy1. Cooling system clogged.2. Engine oil level low.3. Heat range of spa

5-4ETrouble Possible Cause Remedy13. Poor connections or damagedignition wiring.14. Failed ignition parts.15. Specified engine oil not used.16. Thermo

5-5EMN20010TEMPORARY ACTION INEMERGENCYEMH80010IMPACT DAMAGEwThe outboard motor can be seriouslydamaged by a collision while operatingor trailering. D

5-6EMN30410STARTER WILL NOT OPERATEIf the starter mechanism does not operate(engine cannot be cranked with thestarter), the engine can be started with

E1-2******qwEMU01385EMISSION CONTROLINFORMATIONEMU01386NORTH AMERICAN MODELSThis engine conforms to U.S. Environ-mental Protection Agency (EPA) regula

5-7Procedure1) Remove the top cowling.2) Remove the flywheel cover by remov-ing the bolts.3) Prepare the engine for starting. See“STARTING ENGINE” for

5-8EMU00434ENGINE FAILS TO OPERATEEMU00955*Cold Engine Fails to StartIf a cold engine fails to start for primestart model, use the following procedure

5-94) Open the throttle slightly withoutshifting using the throttle control grip,neutral throttle lever or free accelera-tor. (It is necessary to chan

5-10EMN50011TREATMENT OF SUBMERGEDMOTORIf the outboard motor is submerged,immediately take it a Yamaha dealer. Oth-erwise, some corrosion may begin al

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EMP00010Chapter 6INDEXINDEX...6-1123456E 63D-9-15-6 4/18/01 10:41 AM Page 1

6-1EEMP10010INDEXAAdjusting idling speed ...4-16Adjusting trim angle...3-17Air vent screw...

6-2EOutboard motor serial number ...1-1Overheat warning ...2-9PPeriodic maintenance ...

EMU01599IMPORTANT WARRANTY INFORMATION FOR U.S.A. ANDCANADAWelcome to the Yamaha Family!Congratulations on the purchase of your new Yamaha marine powe

5. Your warranty applies specifically to repairs made in the country of purchase. If yourU.S.-purchased Yamaha needs warranty service while in Canada,