Yamaha F2.5B Manuel du propriétaire

F25BT25BOWNER’S MANUALU.S.A.EditionLIT-18626-05-06 65W-9-16 hyoshi 4/18/02 3:15 PM Page 1 (2,1)

1-3EEMU01389STAR LABELSYour outboard motor is labeled with aCalifornia Air Resources Board (CARB)star label. See below for a descripti

E4-25EMU00397Installing the PropellercC8 Be sure to install the thrust washerbefore installing propeller, otherwise,lower case and propeller bo

E4-26EMU01460CHANGING GEAR OILw8 Be sure the outboard is securely fas-tened to the transom or a stable stand.You could be severely injured if th

E4-276010223) Remove the oil drain plug 1.NOTE:The oil drain plug is magnetic. Remove allmetal particles from the plug before rein-stalling it.4) Remo

E4-28EMU00402Cleaning the Fuel Filter1) Remove the screws holding the fuelhose joint assembly . Pull the assem-bly out of the tank.2) Clean the f

E4-29604024405014EMU00831INSPECTING AND REPLACINGANODE(S)Yamaha outboard motor is protectedfrom corrosion by a sacrificial anode(s).Check the anode(

E4-30EMU00404CHECKING BATTERY (for Electric start model)wBattery electrolytic fluid is dangerous; itcontains sulfuric acid and therefore is poi-s

E4-31EMU01279Connecting the BatterywMount the battery holder securely in adry, well-ventilated, vibration-free loca-tion in the boat. Insta

E4-32UPPER LEVELLOWER LEVEL901012qweEMU01280Disconnecting the BatteryDisconnect the BLACK lead from the NEG-ATIVE (-) terminal first. Then disc

E4-33EMU01172CLEANING COOLING-WATER PASSAGESFlushing device equipped modelPerform this procedure right after opera-tion for the most thorough flu

E4-34102025EMU00409MOTOR EXTERIOREMU00410Cleaning the Outboard MotorAfter use, wash the exterior of the out-board with fresh water.Flush the cool

1-4E8 This product emits exhaust gases whichcontain carbon monoxide, a colorless,odorless gas which may cause braindamage or death when inh

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EEMU00414Chapter 5TROUBLE RECOVERYTROUBLESHOOTING ...5-1TEMPORARY ACTION IN EMERGENCY ...

E5-1EMU01204¯TROUBLESHOOTINGA problem in the fuel, compression, or ignition systems can cause poor starting, loss ofpower, or other problems. The trou

E5-2C. Engine idlesirregularly or stalls.Trouble Possible Cause Remedy1. Spark plug(s) fouled or incorrecttype.2. Fuel system obstructed.3. Fuel conta

E5-3D. Warning buzzersounds orindicator lamplights.Trouble Possible Cause Remedy1. Cooling system clogged.2. Engine oil level low.3. Heat range of spa

E5-4Trouble Possible Cause Remedy13. Poor connections or damagedignition wiring.14. Failed ignition parts.15. Specified engine oil not used.16. Thermo

E5-5EMU00416TEMPORARY ACTION INEMERGENCYEMU01492IMPACT DAMAGEwThe outboard motor can be seriouslydamaged by a collision while operatingor trailer

E5-6EMU00423STARTER WILL NOT OPERATEIf the starter mechanism does not operate(engine cannot be cranked with thestarter), the engine can be started

E5-7208062208061qweONSTARTOFF506021***EMU00961¯Emergency Starting Engine1) Remove the top cowling.2) Remove the start-in-gear protectioncable 1 fro

E5-82080635) Insert the knotted end of the emer-gency starter rope into the notch inthe flywheel rotor and wind the ropeseveral turns

1-5E8 Be informed about boating safety. Addi-tional publications and information canbe obtained from many organizations,including the following:

E5-9EMU00446TREATMENT OF SUBMERGEDMOTORIf the outboard motor is submerged,immediately take it a Yamaha dealer.Otherwise, some corrosion may beginalmos

EEMU00450Chapter 6INDEXINDEX...6-1123456 65W-9-16-6 3/15/02 5:19 PM Page 1

E6-1EMU00451INDEXAAdjusting idling speed ...4-18Adjusting trim angle...3-19Air vent screw...

E6-2MMain components...2-1Main switch ...2-7Maintenance chart ...

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 whi

EMU01404YAMAHA MOTOR CORPORATION, U.S.A.FOUR-STROKE OUTBOARD MOTORTHREE-YEAR LIMITED WARRANTYYamaha Motor Corporation, U.S.A. hereby warrants that

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

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

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

1-6EEMU00014IMPORTANT LABELSWARNING LABELS12CAUTION LABELS3202054*weqWARNINGThis engine is equipped with a neutral starting device. The engine will no

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65W-9-16 hyoshi 4/18/02 3:15 PM Page 2 (2,1)

Printed in JapanApril 2002-0.5 × 0.1 !65W-28199-16(F25AMH, F25AEH, F25AE, F25AET, FT25BET)(E)Printed on recycled paperOWN 65W-9-16 hyoshi 4/18/02 3:1

YAMAHA MOTOR CO., LTD.MADE IN JAPANPAYS D'ORIGINE JAPONOUTBOARD MOTOR WARRANTY REGISTRATIONENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORDPleas

PLACEPOSTAGEHEREATTN: WARRANTY DEPARTMENTWarranty card 2/27/02 11:47 AM Page 2

1-7EEMU00015BASIC BOATING RULES(Rules of the road)Just as there are rules which apply whenyou are driving on streets and high ways,there are waterwa

1-8ERULES WHEN ENCOUNTERING VESSELSThere are three main situations which youmay encounter with other vessels whichcould lead to a collision unles

1-9Eits course and speed. You must stay outof its way until you are clear of it. Like-wise, if another vessel is passing you, youshoul

1-10E11A11Proceeding toward headof navigation from seawardCAN BUOYOdd number. Leave to port.ORSECONDARY CHANNEL BUOYSSTARTS NEW NUMBERING SYSTEMold

1-11EEMU00016FUELING INSTRUCTIONSwGASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE!8 Do not smoke when refueling, andkeep away fr

1-12EEMU01804GASOLINEIf knocking or pinging occurs, use a differ-ent brand of gasoline or premium unlead-ed fuel.Recommended gasoline:Regular unleaded

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1-13EEMU01769ENGINE OILRecommended engine oil:4-stroke motor oil with a combination ofcorresponding SAE and API as shown inthe chart.cCAll

1-14EEMU01775BATTERY REQUIREMENTcCDo not use a battery that does not meetthe specified capacity. If a battery whichdoes not meet specificat

1-15EEMU01395PROPELLER SELECTIONThe performance of your outboard motorwill be critically affected by your choice ofpropeller, as an incorrect choi

1-16EEMU01209START-IN-GEAR PROTECTIONYamaha outboard motors or Yamahaapproved remote control units areequipped with start-in-gear protectio

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EEMU00037Chapter 2BASIC COMPONENTSMAIN COMPONENTS...2-1OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ...

!1!2!3!4!5!9!7!8!6@0@1qwertoi!0uy@2@3@4E2-1EMU01206MAIN COMPONENTS1 Top cowling2 Top cowling lock lever3 Oil drain bolt4 Anti-cavitation plate5 Trim t

E2-2qwr902051eEMU00039OPERATIONS OF CONTROLSANDOTHER FUNCTIONSEMU00040FUEL TANKIf your model was equipped with aportable fuel tank, its function

E2-3101043**qwerEMU00059RECOIL STARTER HANDLE (If equipped)Pull the handle gently until resistance isfelt. Then vigorously pull the handlestraigh

E2-4EMU00067Throttle IndicatorThe fuel consumption curve on the throt-tle indicator shows the relative amount offuel consumed for each throttle positi

EThank you for choosing a Yamaha outboardmotor. This Owner’s manual contains infor-mation needed for proper operation, mainte-nance and care.

E2-5EMU00932Engine Stop Lanyard SwitchThe lock-plate 1 must be attached to theengine stop lanyard switch for the engineto run. The lanyard 2 should be

E2-6EMU00098*Remote Control LeverMoving the lever forward from theNeutral position engages Forward gear.Pulling the lever back from Neutrale

E2-7EMU00100Neutral Throttle LeverTo open the throttle without shifting intoeither Forward or Reverse, place theremote control lever in the Neutr

E2-8EMU00934Engine Stop Lanyard SwitchThe lock-plate 1 must be attached to theengine stop lanyard switch for the engineto run. The lanyard 2 should be

E2-9EMU01331Power Trim/Tilt SwitchThe power trim/tilt adjusts the motorangle in relation to the transom. Thepower trim/tilt switch is located

E2-10408026EMU00110*STEERING FRICTION ADJUSTINGLEVERA friction device provides resesistancesteering movement. This is adjustable foroperator preferenc

E2-11qw603013*ABEMU00114TRIM TABThe trim tab should be adjusted so thatthe steering control can be turned toeither the right or left by applying

E2-12EMU00113*TRIM TABFT25The trim tab should be adjusted so thatthe steering control can be turned toeither the right or left by applying thesa

E2-13EMU01125POWER TRIM/TILT SWITCHThe power trim/tilt adjusts the motorangle in relation to the transom. Thepower trim/tilt switch is locate

E2-14EMU01128WARNING INDICATOR(S)If the engine develops a condition moni-tored by the warning system, an indicatorwill come on.Refer to the “WARNING S

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E2-15001059001088EMU01109Trim MeterThis meter shows the trim angle of youroutboard motor.NOTE:8 Memorize the trim angles that workbest for your boat u

E2-16001060q001061qEMU01110Low Oil Pressure Warning IndicatorIf oil pressure drops too low, the warningindicator will start to blink. Refer to thesect

EEMU00162TOP COWLING LOCK LEVERTo remove the engine top cowling, turnthe lock lever. Then lift off the cowling.When replacing the cowling, check to be

E2-18101043*qEMU01146FLUSHING DEVICEThis device 1 is used to clean the coolingwater passages of the motor using a gar-den hose and tap water.NOTE:Refe

E2-19EMU00169WARNING SYSTEMcCDo not continue to operate the engine ifthe warning device has activated. Consultyour Yamaha dealer if the problem can-no

E2-20EMU00173LOW OIL PRESSURE WARNINGIf oil pressure drops too low, the warningdevice will activate.(1):Included (–):N/AIf the warning system has been

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EEMU00174Chapter 3OPERATIONINSTALLATION ...3-1Mounting the outboard motor ...3-2Clamping the outboard mo

E3-1EMU00175INSTALLATIONcCIncorrect 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 o

EGENERAL INFORMATIONBASIC COMPONENTSOPERATIONMAINTENANCETROUBLE RECOVERYINDEXREAD THIS OWNER’S MANUAL CAREFULLYBEFORE OPERATING YOUR OUTBOARD MOTOR.12

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

E3-4EMU01318CLAMPING THE OUTBOARD MOTORManual tilt model1) Place the outboard on the transom sothat it is positioned as close to thecenter as pos

E3-5EMU00233Run the engine under load (in gear with apropeller installed) as follows.1) For the first hour of operation:Run the engine at 2,000 r/

E3-6EMU00204PRE-OPERATION CHECKSwIf any item in the pre-operation check isnot working properly, have it inspectedand repaired before ope

E3-7EMU00209Controls8 Check throttle, shift, and steering forproper operation before starting theengine.8 The controls should work smoothly,without b

E3-8902055EMU00202FILLING FUEL1) Remove the fuel tank cap.2) Fill the fuel tank carefully.3) Close the cap securely after refueling.Wipe up any spille

E3-9304042902061902025EMU01147STARTING ENGINEw8 Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clear o

E3-10NSTARTSTART000648EMU01497PROCEDURE FOR TILLER CONTROLMODEL4) Place the gear-shift lever in the neu-tral position.NOTE:The start-in-gear pr

E3-11EMU01005Manual Start Model7) Pull the starter handle slowly untilyou feel resistance. Then, give astrong pull straight out to crank andst

E3-12N701015000293EMU00247PROCEDURE FOR REMOTE CONTROL MODEL4) Place the remote control lever in theNeutral position.NOTE:The start-in-gear pro

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E3-13ONSTARTOFF701022EMU00949Electric Start Model7) Turn the main switch to “START”,and hold it for a maximum of 5 sec-onds.8) Immediately af

E3-14309016EMU00258WARMING UP ENGINE1) Before beginning operation, allow theengine to warm up at idling speed for3 minutes. (Failure to do this willsh

E3-15EMU00261SHIFTINGwBefore shifting, make sure there are noswimmers or obstacles in the water nearyou.cCTo change the shifting position fro

E3-16EMU01326REVERSEwWhen operating in Reverse, go slowly. Donot open the throttle more than half.Otherwise, the boat may become unsta-ble, whic

E3-17506021EMU00273STOPPING ENGINELet it cool off for a few minutes at idle orlow speed first. Stopping the engineimmediately after operating at high

E3-18EMU01412TRIMMING OUTBOARDMOTORThe trim angle of the outboard motorhelps determine the position of the bowof the boat in the water. The

E3-19ADJUSTING TRIM ANGLE404012*qEMU00951*Manual tilt modelThere are 4 or 5 holes provided in theclamp bracket to adjust the outboardmotor trim ang

E3-20EMU01401Power Trim/Tilt Modelw8 Be sure all people are clear of the out-board motor when adjusting thetrim/tilt angle, also be care

E3-21EMU00282Bow UpWhen the boat is on plane, a bow-up atti-tude result in less drag, greater stabilityand efficiency. This is generally when th

E3-22EMU00285TILTING UP/DOWNIf the engine will be stopped for sometime, or if the boat is moored in shallows,the engine should be tilted up t

E23456EMU00004Chapter 1GENERALINFORMATIONIDENTIFICATION NUMBERS RECORD ..1-1Outboard motor serial number...1-1Key number...

E3-23EMU00290PROCEDURE FOR TILTING UPManual tilt model1) Place the gear shift lever in Neutral.2) Remove the fuel line connection fromthe motor.3) Pla

E3-24EMU00296PROCEDURE FOR TILTING UPPower trim/tilt model1) Remove the fuel-line connection fromthe motor.3) Push the tilt support knob into thecla

E3-25000911EMU00306CRUISING IN SHALLOWWATERManual tilt modelThe outboard motor can be tilted up par-tially to allow operation in shallow water.w8 Pla

E3-26403051EMU00310PROCEDURE1) Place the gear shift lever in the neu-tral position.402071N4020742) Place the tilt lock lever in the rele

E3-27EMU00316CRUISING IN OTHER CONDITIONSCRUISING IN SALT WATERAfter operating in salt water, wash out thecooling-water passages with fresh watert

EEMU00317Chapter 4MAINTENANCESPECIFICATIONS ...4-1TRANSPORTING AND STORING OUTBOARD MOTOR ...

E4-1EMU00322*SPECIFICATIONSModelUnit F25MHBItem18 (1.8, 13)35 (3.5, 25)28 (2.8, 20)18 (1.8, 13)Spark plug N·m (kgf·m, lb·ft)Propeller nut N·m (kgf·m,

E4-2F25EHB F25ERB F25TRB18 (1.8, 13)35 (3.5, 25)28 (2.8, 20)18 (1.8, 13)18 (1.8, 13)35 (3.5, 25)28 (2.8, 20)18 (1.8, 13)1,151 (45.3)430 (16.9)1,148 (4

E4-3EMU00322*SPECIFICATIONSModelUnit T25TRBItem18 (1.8, 13)35 (3.5, 25)28 (2.8, 20)18 (1.8, 13)Spark plug N·m (kgf·m, lb·ft)Propeller nut N·m (kgf·m,

E4-4EMU00326TRAILERING OUTBOARD MOTORThe motor should be trailered and storedin the normal running position. If there isinsufficient road clearance in

E1-1EMU00005IDENTIFICATION NUMBERSRECORDEMU00007OUTBOARD MOTOR SERIAL NUMBERThe outboard motor serial number isstamped on the label attached to t

E4-5EMU00330STORING OUTBOARD MOTORWhen storing your Yamaha outboard forprolonged periods of time, (2 months orlonger), several important pr

E4-6EMU00338Flushing Cooling System and FoggingEngineCooling system flushing is essential toprevent the cooling system from cloggingup with salt, s

E4-7605024qw605014*q6) Remove the motor from the watertank.7) Install the silencer cover and topcowling.1 Water surface2 Lowest water levelEMU003428 F

E4-8EMU00349Lubrication1) Remove the spark plug(s). Spray aYamaha “Stor-Rite Engine FoggingOil” into each cylinder for 10 seconds.Grease the spark

E4-9EMU00353Battery CarewBattery electrolyte is poisonous and dan-gerous, causing severe burns, etc. It con-tains sulfuric acid. Avoid contact withs

E4-10EMU01569PERIODIC MAINTENANCEwBe sure to turn off the engine when youperform maintenance unless otherwisespecified. If the owner is not f

E4-11Spark plugCleaning/Adjustment/●●● 4-14ReplacementGreasing points Greasing ● 4-12Gear oil Change ●●4-26Fuel system Inspection ● 4-16Fuel filterIns

E4-12EMU00366GREASINGYamaha marine grease(Water resistant grease) 65W-9-16-4 3/15/02 5:16 PM Page 13

E4-13103182EMU00366GREASINGYamaha marine grease(Water resistant grease) 65W-9-16-4 3/15/02 5:16 PM Page 14

E4-14EMU01202CLEANING AND ADJUSTING SPARKPLUGwWhen removing or installing a spark plug,be careful not to damage the insulator. Adamaged insulator co

E1-2qwEMU01385EMISSION CONTROLINFORMATIONEMU01387NORTH AMERICAN MODELSThis engine conforms to U.S. Environ-mental Protection Agency (EPA) reg

E4-15When 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

E4-16EMU00369CHECKING FUEL SYSTEMwGasoline (petrol) and its vapors are highlyflammable and explosive. Keep awayfrom sparks, cigarettes, flames or

E4-17EMU00370INSPECTING FUEL FILTERwGasoline (petrol) is highly flammable, andits vapors are flammable and explosive.8 If you have any question about

E4-18EMU00991ADJUSTING IDLING SPEEDw8 Do not touch or remove electrical partswhen starting or during operation.8 Keep hands, hair and clothes awayfrom

EEMU01415CHANGING ENGINE OILw8 Avoid draining the engine oil immedi-ately after stopping the engine. The oilis hot and should be handled with car

E4-20NOTE:If a torque wrench is not available whenyou are installing the drain plug, fingertighten the bolt just until the gasketcomes into

E4-21NOTE:8 For disposal of used oil consult yourYamaha dealer.8 The oil should be changed more oftenwhen the engine is operated underadverse

E4-22205044qw413014EMU01329REPLACING FUSEIf the fuse has blown on an Electric startmodel, open the fuse holder and replacethe fuse with

E4-23EMU00992CHECKING POWER TRIM AND TILTSYSTEMw8 Never get under the lower unit while itis tilted, even when the tilt-supportlever is locked. Severe

E4-24EMU00388CHECKING PROPELLERwYou could be seriously injured if theengine accidentally starts while you arenear the propeller.8 Before inspect