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4-13

When fitting the plug, always clean the
gasket surface and use a new gasket.
Wipe off any dirt from the threads and
screw in the spark plug to the correct
torque.

NOTE:

If a torque-wrench is not available when
you are fitting a spark plug, a good esti-
mate of the correct torque is 1/4 to 1/2 a
turn past finger-tight. Have the spark plug
adjusted to the correct torque as soon as
possible with a torque-wrench.

1

Spark plug gap

2

Spark plug I.D. mark (NGK)

E

Spark plug torque:
Refer to “SPECIFICATIONS”, page 4-1.

Initial of spark

Plug-wrench size

plug I.D. mark

B

21 mm (13/16 in.)

C/BK

16 mm (5/8 in.)

D

18.3 mm (23/32 in.)

903022

q

w

 6L2-9-1H 4  4/20/01 1:49 PM  Page 14

Содержание 25A

Страница 1: ...25A 30A LIT 18626 04 54 25A 30A OWNER S MANUAL U S A Edition ...

Страница 2: ......

Страница 3: ...ial precautions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha continually seeks advance ments in product design and quality Therefore while this manual contains the most current product information available at the time of printing there may be minor discrepancies between your machine and this manual If the...

Страница 4: ......

Страница 5: ...GENERAL INFORMATION BASIC COMPONENTS OPERATION MAINTENANCE TROUBLE RECOVERY INDEX EMA20010 CONTENTS READ THIS OWNER S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR 1 2 3 4 5 6 E ...

Страница 6: ......

Страница 7: ...board motor serial number 1 1 Key number 1 1 EMISSION CONTROL INFORMATION 1 2 SAFETY INFORMATION 1 3 IMPORTANT LABELS 1 5 BASIC BOATING RULES 1 6 FUELING INSTRUCTIONS 1 10 Gasoline petrol 1 11 Engine oil 1 11 BATTERY REQUIREMENT 1 12 PROPELLER SELECTION 1 13 START IN GEAR PROTECTION 1 14 E ...

Страница 8: ...ou in ordering spare parts from your Yamaha dealer or for reference in case your out board motor is stolen 1 Outboard motor serial number 1 401012 904011 123 YAMAHA q YAMAHA MOTOR CO LTD MADE IN JAPAN PAYS D ORIGINE JAPON EMU00008 KEY NUMBER If a main key switch is equipped with the motor the key identification number is stamped on your key as shown in the illustration Record this number in the sp...

Страница 9: ...roval label of Emission control certificate This label is attached to the bottom cowl ing 1 Emission control information label Existing Technology N A Manufactured date label This label is attached to the clamp bracket or the swivel bracket 2 Manufactured date label EMISSION CONTROL INFORMATION ENGINE FAMILY THIS ENGINE CONFORMS TO 2001 U S EPA REGULATIONS FOR MARINE SI ENGINES FELs SPARK PLUG IDL...

Страница 10: ... obstacles and other traffic 8 Always watch carefully for swimmers during the engine operation 8 Stay away from swimming areas EMU00917 SAFETY INFORMATION 8 Before mounting or operating the out board motor read this entire manual Reading it should give you an under standing of the motor and its operation 8 Before operating the boat read any owner s or operator s manuals supplied with it and all la...

Страница 11: ...ny organizations including the following United States Coast Guard Consumer Affairs Staff G BC Office of Boating Public and Consumer Affairs U S Coast Guard Headquarters Washington D C 20593 0001 Boating Safety Hotline 1 800 368 5647 National Marine Manufacturers Association NMMA 401 N Michigan Ave Chicago Il 60611 Marine Retailers Association of America 155 N Michigan Ave Chicago Il 60601 ...

Страница 12: ...e will not start unless the shift control is in neutral position 6E0 83627 41 WARNING Be sure shift control is in neutral before starting engine except 2HP Do not touch or remove electrical parts when starting or during operation Keep hands hair and clothes away from flywheel and other rotating parts while engine is running 6A1 83625 41 25 LOCATION 25 3 30 ...

Страница 13: ...r dened vessel These rules determine which vessel has the right of way and what each vessel should do Stand on vessel The vessel with the right of way has the duty to continue its course and speed except to avoid an immediate collision When you maintain your direction and speed the other vessel will be able to determine how best to avoid you Give way vessel The vessel which does not have the right...

Страница 14: ...ssel head on and are close enough to run the risk of collision neither of you has the right of way Both of you should alter course to avoid an accident You should keep the other vessel on your port left side This rule doesn t apply if both of you will clear one another if you continue on your set course and speed Crossing When two power driven vessels are crossing each other s path close enough to...

Страница 15: ...nnot howev er impede the passage of other vessels in narrow channels Sailing vessel right of way Sailing vessels should normally be given the right of way The exceptions to this are 1 When the sailing vessel is overtaking the power driven vessel the power driven vessel has the right of way 2 Sailing vessels should keep clear of any fishing vessel 3 In a narrow channel a sailing vessel should not h...

Страница 16: ...A I N C H A N N E L old new 2 2 2 2 2 2 A A L L L L Odd number increasing toward head of naviga MAIN CHANNEL BUOYS 1 3 5 7 tion Leave to port left proceeding upstream LIGHTED BUOY Port Hand White Light Green Light old new old new old new LIGHTED BUOY Starboard Hand 2 4 6 Even number increasing toward head of naviga tion Leave to starboard right proceeding up stream White Light Red Light A LIGHTED ...

Страница 17: ...tely with dry rags 8 Do not overfill the fuel tank 8 Tighten the filler cap securely after refueling 8 If you should swallow some gasoline inhale a lot of gasoline vapor or get gasoline in your eyes get immediate medical attention 8 If any gasoline spills onto your skin immediately wash with soap and water Change clothing if gasoline spills on it 8 Touch the fuel nozzle to the filler open ing or f...

Страница 18: ...hanol can be used if ethanol content does not exceed 10 and the fuel meets minimum octane ratings Gasohol containing methanol is not recommended by Yama ha because it can cause fuel system dam age or engine performance problems EMU00018 GASOLINE PETROL If 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 regul...

Страница 19: ...r or rectifier regulator 25NMH 30DMHO 25JMH 8 If you wish to use a battery with the above models install an optional recti fier regulator Models with only a rectifier installed 30DEHO 8 Using a maintenance free battery with the above models can shorten the life of the battery significantly 8 Use caution when connecting acces sories such as fish finders as they may be damaged by high voltage Instal...

Страница 20: ...dverse effect on the engine Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications but there may be uses where a propeller with a different pitch would be more appropriate For a greater operating load a smaller pitch propeller is more suitable as it enables the correct engine speed to be main tained Conversely a larger pitch pro peller is more suitabl...

Страница 21: ...s rpm should be within the upper half of the full throttle operating range as listed in SPECIFICA TIONS on page 4 1 Select a propeller which fulfills this requirement If operating under conditions which allow the engine s rpm to rise above the maxi mum recommended range such as light boat loads reduce the throttle setting to maintain the rpm in the proper operating range 1 Propeller diameter in in...

Страница 22: ...E MEMO ...

Страница 23: ...andle 2 5 Choke knob 2 6 Recoil starter handle 2 6 Starter button 2 7 Remote control 2 7 Steering friction adjusting screw 2 10 Trim tab 2 11 Trim angle adjusting rod 2 11 Shallow water lever 2 12 Tilt lock mechanism 2 12 Tilt support bar 2 13 Tilt support lever 2 13 Top cowling lock lever 2 13 WARNING SYSTEM 2 14 Overheat warning 2 14 Oil level warning oil filter clogging warning 2 15 1 2 3 4 5 6...

Страница 24: ...rol grip Tiller handle 6 Engine stop button Engine stop lanyard switch 7 Transom clamp handle 8 Tilt lock lever 9 Cooling water inlet 0 Propeller q Trim tab Anode w Anti cavitation plate e Trim angle adjusting rod r Rope attachment t Shallow water lever y Fuel tank May not be exactly as shown also may not be included as standard equipment on all models 25 ...

Страница 25: ... Propeller 8 Battery lead 9 Trim angle adjusting rod 0 Clamp bracket q Wiring harness w Recoil starter handle e Engine stop button Engine stop lanyard switch r Warning lamp t Gear shift lever y Throttle control grip tiller handle u Shallow water lever i Rope attachment o Choke knob p Remote control box a Fuel tank May not be exactly as shown also may not be included as standard equipment on all mo...

Страница 26: ...se Fuel meter This meter is on the fuel tank cap It shows current fuel quantity in the fuel tank approximately Fuel tank cap This cap is for filling fuel To remove it turn it counterclockwise Air Vent screw This screw is on the fuel tank cap To loosen it turn it counterclockwise EMC25010 GEAR SHIFT LEVER for Tiller control model Turning the gear shift lever towards you engages the clutch with the ...

Страница 27: ...ower 1 Lock plate 2 Lanyard w 8 Attach the engine stop switch lanyard to a secure place on your clothing your arm or leg while operating 8 Do not attach the lanyard to clothing that could tear loose Do not route the lanyard in such a way that it could become entangled preventing it from functioning 8 Avoid accidentally pulling the lanyard during normal operation Loss of engine power means the loss...

Страница 28: ...ottle indicator 3 Throttle friction adjusting knob screw E 503022 q 503021 e q w 503032 EMU00067 Throttle Indicator The fuel consumption curve on the throt tle indicator shows the relative amount of fuel consumed for each throttle position Choose the setting that offers the best performance and fuel economy for the desired operation 1 Throttle indicator 3 25 25 3 30 EMU00065 Throttle Control Grip ...

Страница 29: ...ob If there is too much resistance it may be difficult to move the throttle grip which could result in an accident Resistance Knob Screw Increase Turn clockwise Decrease Turn counterclockwise EMC42010 CHOKE KNOB Pulling out this knob setting it to ON supplies a rich mixture required to start the engine NOTE The choke knob for Remote control model has the same function as the choke switch on the re...

Страница 30: ...ger 3 Neutral throttle lever 4 Main switch Choke switch 5 Engine stop lanyard switch 6 Throttle friction adjusting screw 000893 w q e r t y Remote control lever Moving the lever forward from the Neu tral position engages Forward gear Pulling the lever back from Neutral engages Reverse The engine will contin ue to run at idle until the lever is moved about 35 a detent can be felt Moving the lever f...

Страница 31: ...l throttle lever will operate only when the remote control lever is in Neu tral The remote control lever will operate only when the neutral throttle lever is in the closed position 1 Fully open 2 Fully closed ON START OFF 701021 EMC48110 Main switch The main switch controls the ignition sys tem its operation is described below 8 OFF Electrical circuits switched off The key can be removed 8 ON Elec...

Страница 32: ...the helm the lanyard will pull out the lock plate stopping igni tion to the engine This will prevent the boat from running away under power w 8 Attach the lanyard to a secure place on your clothing your arm or leg while operating 8 Do not attach the lanyard to clothing that could tear loose Do not route the lanyard in such a way that it could become entangled preventing it from functioning 8 Avoid...

Страница 33: ...n adjusting screw If there is too much resistance it may be difficult to move the lever which could result in an accident EMD00011 STEERING FRICTION ADJUSTING SCREW for Tiller control model A friction device provides resistance to steering movement This is adjustable for operator preference An adjusting screw bolt is located on the swivel brack et EMD00310 Adjustment w Do not overtighten the frict...

Страница 34: ...he trim tab 1 Trim tab 2 Bolt 3 Cap If equipped cC The trim tab also serves as an anode to protect the engine from electrochemical corrosion Never paint the trim tab as it will become ineffective as an anode 2 11 E 603011 w q A B 404022 25 404015 25 3 30 Boat tends The fin of trim tab to veer To the left Turn to the left port side A in the figure To the right Turn to the right starboard B in the f...

Страница 35: ...30 Pushing this lever down will tilt the motor up partially to provide more clearance when operating in shallow water EMD44010 TILT LOCK MECHANISM for Manual tilt model The tilt lock mechanism is used to pre vent reverse thrust from the propeller lift ing the outboard motor when reversing To lock it set the tilt lock lever in the up position To release it push the tilt lock lever down 1 Tilt lock ...

Страница 36: ...ure it fits properly in the rub ber seal Then lock the cowling again by moving the lever upward E 403023 q 403024 25 25 3 30 EMD60210 TILT SUPPORT LEVER 25 3 30 To keep the outboard motor in the tilted up position lock the tilt support lever to the swivel bracket EMU00156 TILT SUPPORT BAR 25 The tilt support bar 1 keeps the outboard motor in the tilted up position ...

Страница 37: ...is engine has an overheat warning device If the engine temperature rises too high the warning device will activate 2 Included N A If the warning system has been activated stop the engine and check the water inlet for clogging Activation of warning device The engine speed will automatically decrease to about 2 000 r min The overheat warning indicator will come on The buzzer will sound Tiller Remote...

Страница 38: ...check for the cause NOTE The warning for oil filter clogging is simi lar to the warnings for low oil level and overheating For easy troubleshooting it is advisable to check for engine overheat ing first then oil level and finally oil filter clogging 1 Oil filter Warning device activation The engine speed will automatically decrease to about 2 000 r min The oil level warning indicator will come on ...

Страница 39: ...g indicator lamp Bottom cowling Remarks Engine oil tank OFF No refilling necessary more than 200 cm3 0 21 US qt 0 181 Imp qt Red ON Buzzer sounds in remote control box and engine speed is limited to about 2 000 r min to help conserve oil Check oil filter for clogging Add oil 200 cm3 or less 0 21 US qt 0 181 Imp qt ...

Страница 40: ...E MEMO ...

Страница 41: ...OPERATION CHECKS 3 11 Operation after a long period of storage 3 12 BREAKING IN RUNNING IN ENGINE 3 13 STARTING ENGINE 3 15 WARMING UP ENGINE 3 22 SHIFTING 3 23 Forward 3 23 Reverse 3 24 STOPPING ENGINE 3 25 TRIMMING OUTBOARD MOTOR 3 26 Adjusting trim angle 3 27 CRUISING IN SHALLOW WATER 3 29 TILTING UP DOWN 3 31 CRUISING IN OTHER CONDITIONS 3 34 Cruising in salt water 3 34 Cruising in turbid wate...

Страница 42: ...rne water spray while the boat is cruising Severe engine damage may result if the motor is operat ed continuously in the presence of air borne water spray NOTE During water testing check the buoyancy of the boat at rest with its maximum load Check that the static water level on the exhaust housing is low enough to pre vent water entry into the powerhead when water rises due to waves when the outbo...

Страница 43: ...he specific boat motor com bination 8 Your dealer or other person experi enced in proper rigging should mount the motor If you are mounting the motor yourself you should be trained by an experienced person permanent mounted type 8 Your dealer or other person experi enced in proper outboard motor mounting should show you how to mount your motor portable type Mount the outboard motor on the center l...

Страница 44: ...eight is too high cavitation tends to occur thus reducing the propulsion and if the pro peller tips cut the air the engine speed will rise abnormally and cause the engine to overheat If the mounting height is too low the water resistance will increase and thereby reduce engine efficiency Mount the engine so that the anti cavita tion plate is between the bottom of the boat and a level 25 mm 1 in be...

Страница 45: ...oose clamp screws could allow the motor to move on the transom or fall off the transom This could cause loss of control and serious injury Make sure the transom screws are tightened securely Occasionally check the screws for tight ness during operation 2 An engine restraint cable or chain should be used Attach one end to the engine restraint cable attachment point and the other to a secure mountin...

Страница 46: ...onally check the screws for tight ness during operation 2 An engine restraint cable or chain should be used Attach one end to the engine restraint cable attachment point and the other to a secure mounting point on the boat Other wise the engine could be completely lost if it accidentally falls off the tran som Secure the clamp bracket to the tran som with the bolts provided with the outboard For d...

Страница 47: ...and resulting emissions regulations One of the most obvious changes has been the elimination of lead from most fuels As gasoline has changed the amount of additives such as aromatics and oxy genates has increased These additives are important for the engines in passen ger cars but they can have detrimental effects in marine engines particularly 2 cycle outboards because of increased deposits in th...

Страница 48: ...ECIFICATION page 4 1 EMF32110 FILLING OIL for Precision blend system model This engine uses the YAMAHA PRECI SION BLEND SYSTEM which provides superior lubrication by ensuring the prop er oil ratio for all operating conditions No fuel premixing is needed except during break in running in Simply pour gaso line into the fuel tank and oil into the oil tank Convenient indicator segments indicate condit...

Страница 49: ...p cowling securely 1 Engine oil tank 2 Oil tank filler cap Electric start model 1 Turn the oil filler access cap on top of the top cowling counterclockwise and open it 2 Open the oil tank filler cap by pulling a tab on the cap 3 Slowly fill the engine oil into the engine oil tank 4 After filling replace the all caps securely 1 Oil filler access cap 2 Oil tank filler cap E 203012 q w 203022 q w 30E...

Страница 50: ...il other than the des ignated type 8 Use a thoroughly blended fuel oil mix ture 8 If the mixture is not thoroughly blend ed or if the mixing ratio is incorrect the following problems could occur Low oil ratio Lack of oil could cause major engine trouble such as piston seizure High oil ratio Too much oil could cause fouled spark plugs smoky exhaust and heavy carbon deposits E Engine oil Gasoline Pe...

Страница 51: ...al 0 22 Imp gal 2 6 Imp gal 3 1 Imp gal 5 3 Imp gal Mixing ratio 100 1 Gasoline Petrol Engine oil 0 01 L 0 12 L 0 14 L 0 24 L 0 01 US qt 0 13 US qt 0 15 US qt 0 25 US qt 0 01 Imp qt 0 11 Imp qt 0 12 Imp qt 0 21 Imp qt 1 L 12 L 14 L 24 L 0 26 US gal 3 2 US gal 3 7 US gal 6 3 US gal 0 22 Imp gal 2 6 Imp gal 3 1 Imp gal 5 3 Imp gal NOTE If using a permanently installed tank pour the oil gradually as ...

Страница 52: ...r gasoline fumes 8 Check fuel line connections to be sure they are tight 8 Be sure the fuel tank is positioned on a secure flat surface and that the fuel hose is not twisted or flattened or likely to contact sharp objects EMU00207 Oil 8 Check to be sure you have plenty of oil for your trip EMU00209 Controls 8 Check throttle shift and steering for proper operation before starting the engine 8 The c...

Страница 53: ...2 Start the engine Leave it idling w 8 Do not touch or remove electrical parts when starting or during operation 8 Keep hands hair and clothes away from flywheel and other rotating parts while engine is running 3 Watch for oil flowing through the oil feed pipes After any air in the oil lines has been expelled YAMAHA PRECISION BLEND SYSTEM should supply oil normally If no oil has begun flowing afte...

Страница 54: ... break in running in in addition to oil in the Precision Blend System E Break in running in premix ratio for Precision Blend System model Gasoline Petrol Engine oil 50 1 Break in running in time 10 hours Break in running in premix ratio for Pre mix model Gasoline Petrol Engine oil 25 1 Refer to Gasoline Petrol and Oil Mixing Mixing ratio 50 1 Gasoline Petrol Engine oil 0 02 L 0 24 L 0 28 L 0 48 L ...

Страница 55: ... reduce engine speed to three quarter throttle approximately 4 000 r min Vary engine speed occasional ly Run at full throttle for one minute then allow about 10 minutes of opera tion at three quarter throttle or less to let the engine cool 4 Third through tenth hours Avoid operating at full throttle for more than 5 minutes at a time Let the engine cool between full throttle runs Vary engine speed ...

Страница 56: ... from smoking and keep away from open flames and sparks while loosening the air vent screw 8 This product emits exhaust gases which contain carbon monoxide a col orless odorless gas which may cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cabin areas well ventilated Avoid blocking exhaust outlets E Precision Blend System model 5 After the...

Страница 57: ...oint on the motor firmly connect the fuel line to the joint Then firmly connect the other end of the fuel line to the joint on the fuel tank NOTE During engine operation place the tank horizontally or fuel cannot be drawn into the engine EMU00854 PROCEDURE FOR TILLER CONTROL MODEL 4 Place the gear shift lever in the neu tral position NOTE The start in gear protection device pre vents the engine fr...

Страница 58: ... not route the lanyard where it could become entan gled preventing it from functioning 8 Avoid accidentally pulling the lanyard during normal operation Loss of engine power means the loss of most steering control Also without engine power the boat could slow rapidly This could cause people and objects in the boat to be thrown forward 305022 305023 25 25 3 30 EMU00240 Manual Start Model 7 Pull out ...

Страница 59: ... 306014 30EH 30ER 10 Return the throttle to the fully closed position EMU00242 Electric Start Model 7 Pull out the choke knob completely After the engine starts return the choke knob to the original position NOTE 8 It is not necessary to use the choke when restarting a warm engine 8 If the choke knob is left pulled out the engine will stall 8 Push the starter button to start the starting motor 9 I...

Страница 60: ...o start the engine If the engine will not start after 5 seconds of cranking release your hand from the starter switch and crank the engine again after an interval of 10 seconds E N 000293 503012 EMU00247 PROCEDURE FOR REMOTE CONTROL MODEL 4 Place the remote control lever in the Neutral position NOTE The start in gear protection device pre vents the engine from starting except when in Neutral 5 Att...

Страница 61: ... power the boat could slow rapidly This could cause people and objects in the boat to be thrown forward 6 Turn the main switch to ON E 701013 N MU00945 Electric Start Model 7 Open the throttle slightly lifting the neutral throttle lever upwards partial ly You may need to change the throt tle opening slightly depending on engine temperature After the engine starts return the throttle to the origina...

Страница 62: ...or the remote choke system will not operate 9 Turn the main switch to START and hold it for a maximum of 5 sec onds 10 Immediately after the engine starts release the main switch to return it to ON cC 8 Do not turn the main switch to START when the engine is running 8 Do not keep the starter motor turning for more than 5 seconds The battery will rapidly become exhausted and it will be impossible f...

Страница 63: ...cC A continuous flow of water from the pilot hole shows that the water pump is pumping water through the cooling pas sages If water is not flowing out of the pilot hole at all times while the engine is running do not continue to run the engine Overheating and serious damage could occur Stop the engine and check to see if the water inlet on the lower cas ing is blocked If the problem cannot be foun...

Страница 64: ...he throttle first so that the engine idles or runs at low speeds FORWARD Tiller control model 1 Place the throttle control grip in the fully closed position 2 Turn the gear shift lever quickly and firmly from Neutral to Forward 406013 N F 701043 N F 503012 Remote control model Pull up the neutral interlock trigger and move the remote control lever quickly and firmly from Neutral to Forward ...

Страница 65: ... fully closed position for Tiller control model 2 Check that the tilt lock lever for Man ual tilt Hydro tilt model is in the locked position 406014 N R N R 701044 503012 402062 402051 25 25 3 30 Tiller control model 3 Turn the gear shift lever quickly and firmly from Neutral to Reverse Remote control model 3 Pull up the neutral interlock trigger if equipped and move the remote con trol lever quick...

Страница 66: ... If the fuel joints are provided discon nect the fuel line from the motor after stopping the engine 3 Tighten the air vent screw on the fuel tank cap after stopping the engine if it is equipped 4 Remove the key if the boat will be left unattended NOTE The engine can also be stopped by pulling the lanyard and removing the lock plate from the engine stop lanyard switch then turning the main switch t...

Страница 67: ...at engine and propeller Correct trim is also affected by variables such as the load in the boat sea conditions and running speed w Excessive trim for the operating condi tions either trim up or trim down can cause boat instability and can make steering the boat more difficult This increases the possibility of an accident If the boat begins to feel unstable or is hard to steer slow down and or read...

Страница 68: ...ward the transom Make test runs with the trim set to differ ent angles to find the position that works best for your boat and operating condi tions w 8 Stop the engine before adjusting the trim angle 8 Use care to avoid being pinched when removing or installing the rod 8 Use caution when trying a trim position for the first time Increase speed gradu ally and watch for any signs of instabili ty or ...

Страница 69: ...at is pushing the water and there is more air drag Excessive trim up can cause the propeller to ventilate which reduces performance further When trimmed out too much a boat may porpoise hop in the water which could throw the operator and pas sengers overboard EMU00283 Bow Down When the bow of the boat is down it is easier to accelerate from a standing start onto plane Too much trim in causes the b...

Страница 70: ...is being used Hitting an underwater obstacle could cause the engine to lift out of the water resulting in loss of control 8 Use extra care when operating in reverse Too much reverse thrust can cause the engine to lift out of the water increasing the chance of acci dent and personal injury 8 Return the engine to its normal posi tion as soon as the boat is back in deeper water cC Place the gear shif...

Страница 71: ...t up the engine until the tilt support bar auto matically returns to the free position Then slowly lower the engine to the normal position 402072 412022 25 3 30 25 3 30 25 403023 25 402075 EMG80511 PROCEDURE 25 3 30 1 Push the shallow water lever down to the release position 2 For setting the outboard motor at the partially tilted position slightly tilt up the engine until the plate turns com plet...

Страница 72: ...om over heating can result 8 Do not tilt up the engine by pushing the steering handle as this could break the handle 8 Keep the power unit higher than the propeller at all times Otherwise water can run into the cylinder causing dam age w Be sure all people are clear of the out board motor when adjusting the tilt angle also be careful not to pinch any body parts between the drive unit and engine br...

Страница 73: ... Remove the fuel line connection from the motor N 406012 402061 402075 3 Push the tilt lock lever to release 4 Pull up the shallow water lever 5 Hold the rear of the top cowling with one hand and fully tilt the engine up 6 The tilt support bar turns to the locked position automatically ...

Страница 74: ...FOR TILTING DOWN 25 3 30 1 Return the tilt support lever tilting up the engine slightly 2 Tilt down the engine EMG63010 PROCEDURE FOR TILTING UP 25 3 30 1 Remove the fuel line connection from the motor If the fuel connector is provided on the motor 2 Place the tilt lock lever in Release 3 Hold the rear of the top cowling with one hand tilt the engine up and turn the tilt support lever to the locke...

Страница 75: ...resh water to prevent them from becoming clogged up with salt deposits NOTE Refer to cooling system flushing instruc tions in TRANSPORTING AND STORING OUTBOARD MOTOR CRUISING IN TURBID WATER It is strongly recommended that the optional chromium plated water pump kit be installed if the outboard is to be used in turbid muddy water conditions ...

Страница 76: ...E MEMO ...

Страница 77: ...12 Checking fuel system 4 14 Inspecting fuel filter 4 15 Adjusting idling speed 4 16 Checking water drain under engine oil tank 4 17 Replacing fuse 4 18 Checking wiring and connectors 4 18 Exhaust leakage 4 18 Water leakage 4 18 Greasing 4 19 Checking propeller 4 22 Changing gear oil 4 24 Cleaning fuel tank 4 25 Inspecting and replacing anode s 4 26 Checking battery 4 27 Checking bolts and nuts 4 ...

Страница 78: ...tarting system 8Battery capacity V AH Minimum cold crank performance Amps at 17 8 C 0 F Minimum reserve capacity minutes at 26 7 C 80 F 8Alternator output V A W 8Starting carburetion system 2 stroke L 2 395 24 1 67 56 2 6 2 2 C D I system B7HS 10 0 9 1 0 0 035 0 039 Tiller control Manual start 12V 80W Choke start system DRIVE UNIT 8Gear positions Gear ratio 8Trim tilt system 8Propeller mark Forwar...

Страница 79: ...3 2 3 C D I system B7HS 10 0 9 1 0 0 035 0 039 Tiller control Manual start 12V 80W Choke start system Forward Neutral Reverse 1 85 24 13 Manual F Regular unleaded gasoline P O N minimum 86 25 6 6 5 5 YAMALUBE 2 STROKE OUTBOARD OIL or an equivalent TC W3 certified outboard oil Engine 0 9 1 0 0 8 Hypoid gear oil SAE 90 370 12 5 13 0 25 2 5 18 35 3 5 25 25 2 5 18 35 3 5 25 993 39 1 360 14 2 1 279 50 ...

Страница 80: ...tor output V A W 8Starting carburetion system DRIVE UNIT 8Gear positions Gear ratio 8Trim tilt system 8Propeller mark FUEL AND OIL TIGHTENING TORQUE 8Fuel Fuel tank capacity L US gal Imp gal 8Recommended engine oil Oil tank capacity L US qt Imp qt 8Fuel oil ratio 8Recommended gearcase oil Gear oil capacity cm3 US oz Imp oz 662 26 1 307 12 1 1 261 49 6 545 21 5 62 0 136 7 4 500 5 500 22 1 30 at 5 0...

Страница 81: ...ot use the tilt support lever knob when trailering the boat The outboard motor could shake loose from the tilt support and fall If the motor can not be trailered in the down position use an additional support device to secure it in the up position w 8 Never get under the lower unit while it is tilted even if a motor support bar is used Severe injury could occur if the outboard accidentally falls 8...

Страница 82: ...hich could result in damage EMK16010 STORING OUTBOARD MOTOR When storing your Yamaha outboard for prolonged periods of time 2 months or longer several important procedures must be performed to prevent expensive damage This is especially important for your Precision Blend equipped outboard due to the lean oil ratios used at idle prior to shutting the engine off for the season It is advisable to hav...

Страница 83: ...nd Fogging Engine Cooling system flushing is essential to prevent the cooling system from clogging up with salt sand or dirt In addition fog ging of the engine is mandatory to pre vent expensive engine damage due to rust Perform the flushing and fogging at the same time 1 Remove the cowling 2 Install the outboard motor on the water tank and fill the tank with fresh water to above the level of the ...

Страница 84: ...urn off the engine and water supply EMK26111 Lubrication 1 Remove the spark plugs and spray a 10 second spray of Yamaha Stor Rite Engine Fogging Oil into each cylinder Grease the spark plug threads and reinstall the spark plugs and torque to proper specification Refer to CLEANING AND ADJUST ING SPARK PLUG 2 Turn the engine over with the stop lanyard disconnected to work the fog ging oil into the p...

Страница 85: ...d Yamaha dealership prior to use 5 Grease all grease fittings Refer to GREASING EMK27011 Cleaning and Anti corrosion Measure 1 Wash down the exterior of the out board with fresh water and dry off completely 2 Spray the engine s exterior with Yamaha Silicone Protectant Part No LUB SILCNE 13 00 3 Wax the cowling with a non abrasive wax such as Yamaha Silicone Wax Part No ACC 11000 15 02 ...

Страница 86: ...charging or using in a closed space Always wear eye protection when working near batteries KEEP OUT OF REACH OF CHILDREN Batteries vary among manufacturers Therefore the following procedures may not always apply Consult your battery manufacturer s instructions 1 Disconnect and remove the battery from the boat Always disconnect the black negative lead first to prevent the risk of shorting 2 Clean t...

Страница 87: ...maha dealer for owners who have the mechanical skills tools and other equipment necessary to perform maintenance not covered by this owner s manual EMK33011 REPLACEMENT PARTS If replacement parts are necessary use only genuine Yamaha parts or equiva lents of the same type and of equivalent strength and materials Any part of inferi or quality may malfunction and the resulting loss of control could ...

Страница 88: ...etightening 4 30 Cowling clamp s Inspection Adjustment Motor exterior Inspection 4 30 Cooling water passages 2 Flushing Battery Inspection Charge every 4 27 month 4 11 E 1 If a portable fuel tank is equipped 2 When operating in salt water turbid or muddy water the engine should be flushed with clean water after each use Initial Every Refer Page 10 hours 50 hours 100 hours 200 hours 3 months 6 mont...

Страница 89: ...air leak or carburetion problem in that cylinder Do not attempt to diagnose any problems yourself Instead take the outboard motor to a Yamaha dealer You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode If electrode erosion becomes excessive or if carbon and other deposits are excessive you should replace the sp...

Страница 90: ...en you are fitting a spark plug a good esti mate of the correct torque is 1 4 to 1 2 a turn past finger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench 1 Spark plug gap 2 Spark plug I D mark NGK E Spark plug torque Refer to SPECIFICATIONS page 4 1 Initial of spark Plug wrench size plug I D mark B 21 mm 13 16 in C BK 16 mm 5 8 in D 18 3 mm 23 32 in ...

Страница 91: ...d it should be repaired immediately by Yama ha dealer or other qualified mechanic Checking points 8 Fuel system parts leakage 8 Fuel hose joint leakage 8 Fuel hose cracks or other damage 8 Fuel connector leakage w Leaking fuel can result in fire or explo sion 8 Check for fuel leakage regularly 8 If any fuel leakage is found the fuel system must be repaired by a qualified mechanic Improper repairs ...

Страница 92: ...Wipe up any spilled fuel immediately 8 The fuel filter must be reassembled carefully with O ring filter cup and hoses in place Improper assembly or replacement can result in a fuel leak which could result in a fire or explosion hazard EMU00371 1 Remove the nut holding the fuel filter assembly if equipped 2 Unscrew the filter cup catching any spilled fuel in a rag 3 Remove the filter element and wa...

Страница 93: ...move electrical parts when starting or during operation 8 Keep hands hair and clothes away from flywheel and other rotating parts while engine is running cC This procedure must be performed while the outboard motor is in the water A flushing attachment or test tank can be used A diagnostic tachometer should be used for this procedure 1 Start the engine and allow it to warm up fully in Neutral unti...

Страница 94: ... not warmed up fully the speed setting will tend to be too high If you have diffi culty obtaining the specified idle consult a Yamaha dealer or other qualified mechanic 1 Throttle stop screw E q w 204023 q 25 q 25 3 30 EMK58010 CHECKING WATER DRAIN UNDER ENGINE OIL TANK A translucent water drain hose is connect ed from the bottom of the oil tank to the filler neck If water or foreign matter col le...

Страница 95: ... NOTE If the new fuse blows again immediately consult a Yamaha dealer 1 Fuse holder 2 Fuse 10A 205021 30 25 q q w w EMK78010 CHECKING WIRING AND CONNECTORS 1 Check that each grounding wire is properly secured 2 Check that each connector is engaged securely EXHAUST LEAKAGE Start the engine and check that no exhaust leaks from the joints between the exhaust cover cylinder head and crank case WATER L...

Страница 96: ...4 19 E MU00366 GREASING Yamaha marine grease Water resistant grease 25 103141b ...

Страница 97: ...4 20 E 25 3 30 103141a EMU00366 GREASING Yamaha marine grease Water resistant grease ...

Страница 98: ...4 21 E 30 EMU00366 GREASING Yamaha marine grease Water resistant grease ...

Страница 99: ... to hold the pro peller when loosening or tightening the propeller nut Put a wood block between the cavitation plate and the propeller to prevent the propeller from turning 210012 602052 602051 602054 EMU00390 Propeller Checking Point 8 Check each of the propeller blades for wear erosion from cavitation or ventila tion or other damage 8 Check the splines for wear and damage 8 Check for fish line w...

Страница 100: ...nstall the spacer and washer Tighten the propeller nut to the specified torque 4 Align the propeller nut with the pro peller shaft hole Insert a new cotter pin in the hole and bend the cotter pin ends NOTE If the propeller nut does not align with the propeller shaft hole after tightening to the specified torque then tighten the nut fur ther to align it with the hole cC Be sure to use a new cotter ...

Страница 101: ...board accidentally falls 1 Put the outboard in a vertical position not tilted 2 Place a suitable container under the gear case 3 Remove the oil drain plug 1 NOTE The oil drain plug is magnetic Remove all metal particles from the plug before rein stalling it 4 Remove the oil level plug 2 to allow the oil to drain completely cC Inspect the used oil after it has been drained If the oil is milky water...

Страница 102: ...LEANING FUEL TANK w Gasoline petrol is highly flammable and its vapors are flammable and explosive 8 If you have any question about properly doing this procedure consult your Yamaha dealer 8 Keep away from sparks cigarettes flames or other sources of ignition when cleaning the fuel tank 8 Remove the fuel tank from the boat before cleaning it Work only outdoors in an area with good ventilation 8 Wi...

Страница 103: ...Clean the filter located on the end of the suction pipe in a suitable clean ing solvent Allow the filter to dry 3 Replace the gasket with a new one Reinstall the fuel hose joint assembly and tighten the screws firmly EMU00831 INSPECTING AND REPLACING ANODE S Yamaha outboard motor is protected from corrosion by a sacrificial anode s Check the anode s periodically Remove the scales from surfaces of ...

Страница 104: ...lush with water 8 EYES Flush with water for 15 minutes and get immediate medical attention Antidote INTERNAL 8 Drink large quantities of water or milk followed by milk of magnesia beaten egg or vegetable oil Get immediate medical attention Batteries also generate explosive hydrogen gas therefore you should always follow these preventive mea sures 8 Charge batteries in a well ventilated area 8 Keep...

Страница 105: ... pure de ionized water suitable to use in batteries 2 Keep the battery always in a good state of charge Installing a voltmeter will help you monitor your battery If you will not use the boat for a month or more remove the battery from the boat and store it in a cool dark place Completely recharge the battery before using it 3 If the battery will be stored for longer than a month check the specific...

Страница 106: ...lling the battery and disconnect the RED lead last when removing it Otherwise the electrical system can be damaged 8 The electrical contacts of the battery and cables must be clean and properly connected or the battery will not start the engine Connect the RED lead to the POSITIVE terminal first Then connect the BLACK lead to the NEG ATIVE terminal 1 Red lead 2 Black lead 3 Battery UPPER LEVEL LOW...

Страница 107: ...he areas Consult a Yamaha dealer for touch up paint EML44010 COATING THE BOAT BOTTOM A clean hull improves boat performance The boat bottom should be kept as clean of marine growths as possible If neces sary the boat bottom can be coated with an anti fouling paint approved for your area to inhibit marine growth Do not use anti fouling paint which includes copper or graphite These paints can cause ...

Страница 108: ...E MEMO ...

Страница 109: ...EMN00010 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING 5 1 TEMPORARY ACTION IN EMERGENCY 5 5 Impact damage 5 5 Starter will not operate 5 6 Treatment of submerged motor 5 8 1 2 3 4 5 6 E ...

Страница 110: ...oad and repair Replace fuse with one of correct amperage 4 Have serviced by a Yamaha dealer 5 Attach lanyard 6 Shift to neutral B Engine will not start Starter operates 1 Fuel tank empty 2 Fuel contaminated or stale 3 Fuel filter clogged 4 Starting procedure incorrect 5 Fuel pump malfunctions 6 Spark plug s fouled or incorrect type 7 Spark plug cap s fitted incorrectly 8 Poor connections or damage...

Страница 111: ...ve adjustment incorrect 19 Battery lead disconnected 1 Inspect spark plug s Clean or replace with recommended type 2 Check for pinched or kinked fuel line or other obstructions in fuel system 3 Fill tank with clean fresh fuel 4 Clean or replace filter 5 Have serviced by a Yamaha dealer 6 Find and correct cause of warning 7 Inspect and adjust as specified 8 Check wires for wear or breaks Tighten al...

Страница 112: ...ged 2 Propeller pitch or diameter incorrect 3 Trim angle incorrect 4 Motor mounted at incorrect height on transom 5 Warning system activated 6 Boat bottom fouled with marine growth 7 Spark plug s fouled or incorrect type 8 Weeds or other foreign matter tangled on gear housing 9 Fuel system obstructed 10 Fuel filter clogged 11 Fuel contaminated or stale 12 Spark plug gap incorrect 1 Have propeller ...

Страница 113: ...iced by a Yamaha dealer 15 Check and replace oil with specified type 16 Have serviced by a Yamaha dealer 17 Open the air vent screw 18 Have serviced by a Yamaha dealer 19 Connect correctly 20 Inspect spark plug and replace it with recommended type 21 Have serviced by a Yamaha dealer E Engine power loss F Engine vibrates excessively 1 Propeller damaged 2 Propeller shaft damaged 3 Weeds or other for...

Страница 114: ...tor unsafe to operate If the outboard motor hits any object in the water follow the procedure below 1 Stop the engine immediately 2 Inspect control system and all compo nents for damage Also inspect the boat damage 3 However damage is found or not found go back to a nearest harbor slowly and carefully 4 Have a Yamaha dealer inspection of the outboard motor before operating it again E 607011 ...

Страница 115: ...t could unexpectedly start to move which could result in an accident 8 Be sure no one is standing behind you when pulling the starter rope It could whip behind you and injure someone 8 An unguarded rotating flywheel is very dangerous Keep loose clothing and other objects away when starting the engine Use the emergency starter rope only as instructed Do not touch the fly wheel or other moving parts...

Страница 116: ...the engine is in Neutral and that the lock plate is attached to the engine stop lanyard switch The main switch must be ON if equipped it 5 Pull out the choke knob when a cold engine starts After the engine start return the choke knob 6 Insert the knotted end of the emer gency starter rope into the notch in the flywheel rotor and wind the rope several turns clockwise 7 Give a strong pull straight o...

Страница 117: ...horoughly wash away mud salt seaweed etc with fresh water 2 Remove the spark plugs and face the spark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the carburetor 4 Feed fogging oil or engine oil through the carburetors and spark plug holes while cranking with the manual starter or emergency starter rope 5 Take the outboard motor to a Yamaha dealer as so...

Страница 118: ...E MEMO ...

Страница 119: ...EMP00010 Chapter 6 INDEX INDEX 6 1 1 2 3 4 5 6 E ...

Страница 120: ...er 3 34 Cruising in turbid water 3 34 Crusing in other conditions 3 34 Crusing in shallow water 3 29 D Disconnecting the battery 4 29 E Emergency starting engine 5 7 Emission control information 1 2 Engine oil 1 11 Engine stop button 2 5 Engine stop lanyard switch 2 4 2 9 Exhaust leakage 4 18 F Filling fuel 3 6 Filling fuel and engine oil 3 6 Filling fuel tank 4 6 Filling oil 3 7 Flushing cooling ...

Страница 121: ...w water lever 2 12 Shifting 3 23 Specification data 4 1 Start in gear protection 1 14 Starter button 2 7 Starter will not operate 5 6 Starting engine 3 15 Steering friction adjusting screw 2 10 Stopping engine 3 25 Storing outboard motor 4 5 T Temporary action in emergency 5 5 Throttle control grip 2 5 Throttle friction adjusting screw 2 10 Throttle friction adjusting screw knob 2 6 Throttle indic...

Страница 122: ...gistration records are checked 2 Read the Limited Warranty statement which follows these instructions This warranty applies to Yamaha outboard motors sold in the United States whether purchased sepa rately or when supplied as original equipment by a boat builder The terms also apply to original equipment packages sold in Canada with coverage provided by Yamaha Motor Canada see Warranty Guide for C...

Страница 123: ...ilable in one country may not be sold or serviced in the other 6 If you need any additional information about your Yamaha or warranty coverage which your dealer cannot provide please contact us directly Yamaha Motor Corporation U S A P O Box 6555 Cypress CA 90630 Attention Customer Relations Department Telephone No 714 761 7439 Fax No 714 761 7559 Yamaha Motor Canada Ltd 480 Gordon Baker Road Toro...

Страница 124: ...tor purchased and registered for use in the United States only excluding its territo ries For warranty provisions outside the United States contact the particular country s local Yamaha distributor WARRANTY REGISTRATION To be eligible for warranty coverage the outboard motor must first be registered with Yamaha Motor Cor poration U S A A warranty registration form is provided in the Owner s Manual...

Страница 125: ...LSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE YAMAHA MOTOR CORPORATION U S A Post Office Box 6555 Cypress California 90630 WARRANTY QUESTIONS AND ANSWERS Q What costs are my responsibility during the warranty period A The customer s responsibility includes all costs of normal maintenance services non warranty repairs accident and collision dam ages Q What are some examples of abnormal strai...

Страница 126: ...ation such as names addresses model engine serial number dates and receipts CHANGE OF ADDRESS The federal government requires each manufacturer of a motor vehicle to maintain a complete up to date list of all first purchasers against the possibility of a safety related defect and recall This list is complied from the purchase registrations sent to Yamaha Motor Corporation U S A by the selling deal...

Страница 127: ...ll receive service If you need more information about your warranty coverage or your Yamaha outside the U S A or Canada please contact an autho rized Yamaha dealer in your country 2 Keep a copy of your sales contract or invoice for the purchase of your Yamaha and present it if you need warranty repairs This document should show the date of purchase which is important evidence the repairing dealer ...

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Страница 130: ...25A 30A Printed in Japan April 2001 1 0 1 6L2 28199 1H 25NMH 25JMH 30DMHO 30DEHO 30DEO E Printed on recycled paper ...

Страница 131: ...25A 30A OWNER S MANUAL ...

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