background image

 

Maintenance

 

51

 

Checkpoints

 

 

Fuel system parts leakage

 

 

Fuel line joint leakage

 

 

Fuel line cracks or other damage

 

 

Fuel connector leakage

 

EMU28980

 

Inspecting fuel filter

WARNING

 

EWM00310 

 

Gasoline is highly flammable, and its va-
pors are flammable and explosive.

 

 

If you have any question about properly
doing this procedure, consult your
Yamaha dealer.

 

 

Do not perform this procedure on a hot
or running engine. Allow the engine to
cool.

 

 

There will be fuel in the fuel filter. Keep
away from sparks, cigarettes, flames or
other sources of ignition.

 

 

This procedure will allow some fuel to
spill. Catch fuel in a rag. Wipe up any

spilled fuel immediately.

 

 

The fuel filter must be reassembled
carefully with the O-ring, filter cup, and
hoses in place. Improper assembly or
replacement could result in a fuel leak,
which could result in a fire or explosion

 

hazard.

 

EMU29012

 

Cleaning fuel filter

 

1.

Lift up and hold the locking tab to loosen
the filter cup ring nut.

2.

Remove the filter cup, catching any
spilled fuel in a rag.

3.

Remove the filter element, and wash it in
solvent. Allow it to dry. Inspect the filter
element and O-ring to make sure they
are in good condition. Replace them if
necessary. If any water is found in the
fuel, the Yamaha portable fuel tank or
other fuel tanks should be checked and
cleaned.

ZMU05308

 

1. Filter cup ring nut
2. Locking tab

1

2

ZMU05309

Summary of Contents for 250G

Page 1: ...OWNER S MANUAL 250G L250G 6S3 28199 70 E0 ...

Page 2: ...EMU25050 Read this owner s manual carefully before operating your outboard motor ...

Page 3: ...en your machine and this manual If there is any question concerning this manu al please consult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perform the specified periodic inspections and main tenance by correctly following the instruc tions in the owner s manual Note that if you do not follow these instructions not only may the product break down ...

Page 4: ...Overheat warning indicator digital type 14 Speedometer digital type 14 Trim meter digital type 15 Hour meter 15 Hour meter digital type 15 Trip meter 16 Clock 16 Fuel gauge 17 Fuel warning indicator 17 Low battery voltage warning indicator 17 Fuel management meter 18 Fuel flow meter 18 Fuel consumption meter 19 Fuel economy 19 Twin engine speed synchronizer 19 Warning system 20 Overheat warning tw...

Page 5: ...em 50 Inspecting fuel filter 51 Cleaning fuel filter 51 Inspecting idling speed 52 Checking water in engine oil tank 52 Checking wiring and connectors 53 Exhaust leakage 53 Water leakage 53 Checking power trim and tilt system 53 Checking propeller 54 Removing the propeller 55 Installing the Propeller 55 Changing gear oil 56 Inspecting and replacing anode s 57 Checking battery for electric start mo...

Page 6: ... reference in case your outboard motor is sto len EMU25190 Key number If a main key switch is equipped with the mo tor the key identification number is stamped on your key as shown in the illustration Record this number in the space provided for reference in case you need a new key EMU25202 EC label Engines affixed with this label conform to certain portions of the European Parliament directive re...

Page 7: ... should wear PFDs when there are potentially hazardous boating condi tions Gasoline is highly flammable and its va pors are flammable and explosive Handle and store gasoline carefully Make sure there are no gas fumes or leaking fuel be fore starting the engine This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which may cause brain dam age or death when inhaled...

Page 8: ...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 EMU25413 Label counter rotation models WARNING EWM01281 Use only a counterclockwise rotation propeller with this engine Counterclockwise propellers are marked with a letter L after the size indication The wrong type of propeller could cause th...

Page 9: ...e overloaded causing electric system damage For electric start models choose a battery which meets the following specifications EMU25720 Battery specifications EMU25742 Propeller selection The performance of your outboard motor will be critically affected by your choice of propel ler as an incorrect choice could adversely affect performance and could also seriously damage the motor Engine speed de...

Page 10: ...ce the throttle setting to maintain the engine in the proper operating range For instructions on propeller removal and in stallation see page 54 EMU25760 Start in gear protection Yamaha outboard motors affixed with the pictured label or Yamaha approved remote control units are equipped with start in gear protection device s This feature permits the engine to be started only when it is in neutral A...

Page 11: ... 14 3 ZMU05321 TRIP TIME BATT Km h knot mph km mile SPEED YAMAHA set mode YAMAHA set mode P S mpg Km L gph I h ECON SYNC TTL FUEL MANAGEMENT 1 Top cowling 2 Top cowling lock lever s 3 Trim tab anode 4 Propeller 5 Cooling water inlet 6 Anti cavitation plate 7 Anode 8 Tilt support lever 9 Flushing device 10 Power trim and tilt switch 11 Digital tachometer 12 Digital speedometer 13 Fuel management me...

Page 12: ...ock trigger To shift out of neutral first pull the neutral in terlock trigger up 1 Power trim and tilt switch 2 Remote control lever 3 Neutral interlock trigger 4 Neutral throttle lever 5 Main switch choke switch 6 Engine stop lanyard switch 7 Throttle friction adjuster 1 Remote control lever 2 Power trim and tilt switch 3 Free accelerator 4 Throttle friction adjuster 2 3 2 1 4 ZMU04569 1 Neutral ...

Page 13: ... throttle lever is in the closed position EMU26221 Choke switch To activate the choke system press in the main switch while the key is turned to the on or start position The choke system will then supply the rich fuel mixture required to start the engine When the key is released the choke will switch off automatically EMU26232 Free accelerator To open the throttle without shifting into ei ther for...

Page 14: ...ster clockwise To decrease resistance turn the adjuster counterclockwise WARNING EWM00030 Do not overtighten the friction adjuster If there is too much resistance it could be difficult to move throttle lever or grip which could result in an accident When constant speed is desired tighten the adjuster to maintain the desired throttle set ting EMU25990 Engine stop lanyard switch The lock plate must ...

Page 15: ...ed EMU26090 Main switch The 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 key can be removed on With the main switch in the on posi tion the electrical circuits are on and the key cannot be removed start With the main switch in the start po sition the starter motor turns to start the e...

Page 16: ...stop in its current position WARNING EWM01030 Use the power trim and tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the en gine off Attempting to use this switch while the boat is moving could increase the risk of falling overboard and could distract the operator increasing the risk of collision with another boat or an obsta cle NOTE For instructions...

Page 17: ...ure steering is correct Be sure you have tightened the bolt after ad justing the trim tab If the boat tends to veer the left port side turn the trim tab rear end to the port side A in the figure If the boat tends to veer the right starboard side turn the trim tab end to the starboard side B in the figure CAUTION ECM00840 The trim tab also serves as an anode to protect the engine from electrochemic...

Page 18: ...r passages of the motor using a garden hose and tap water NOTE For details on usage see page 44 EMU26491 Digital tachometer The tachometer shows the engine speed and has the following functions NOTE All segments of the display will light momen tarily after the main switch is turned on and will return to normal thereafter 1 Top cowling lock lever 1 Top cowling lock lever s ZMU05323 1 1 1 ZMU05300 1...

Page 19: ...ng indicator will start to blink For fur ther information on reading the indicator see page 20 CAUTION ECM00050 Do not continue to run the engine if the overheat warning indicator is on Serious engine damage will occur EMU26600 Speedometer digital type This gauge shows the boat speed NOTE After the main switch is first turned on all segments of the display come on as a test After a few seconds the...

Page 20: ...the top cowling It measures the total number of hours the engine has been run since manufacture When the main switch is turned on initially all segments of the display will light The indicator will then display the number of hours normally NOTE The number of hours is only measured when the engine is running When the main switch is turned on but the engine is not running the digital hour meter will...

Page 21: ...ts to trip To reset the trip meter to zero press the set and mode buttons at the same time NOTE The trip distance is shown in kilometers or miles depending upon the unit of measure ment selected for the speedometer The trip distance is kept in memory by bat tery power The stored data will be lost if the battery is disconnected EMU26700 Clock Press the mode button repeatedly until the indicator on ...

Page 22: ...ion of the sensor in the fuel tank and the attitude of the boat in the water Operation with bow up trim or continuous turning can give false readings EMU26720 Fuel warning indicator If the fuel level decreases to one segment the fuel level warning segment will begin to blink CAUTION ECM00880 Do not continue to operate the engine with full throttle if a warning device has activated Get back to the ...

Page 23: ...button to rotate the fuel flow display in the following order Press the set button once to display the fuel flow of the starboard engine An for starboard will also be displayed Press the set button a second time to display the fuel flow of the port engine A for port will also be displayed Press the set button a third time to return the display to the total fuel flow of both engines for port and st...

Page 24: ...htly with the type of water salt fresh and contaminate levels air temper ature and humidity cleanliness of the boat bottom engine mounting height skill of the operator and individual gasoline for mulation winter or summer fuel and amount of additives The Yamaha digital speedometer and fuel management meter calculates speed miles traveled and fuel economy by water movement at the stern of the boat ...

Page 25: ...at warning device If the engine temperature rises too high the warning device will activate Activation of warning device The engine speed will automatically de crease to about 2000 r min If equipped with an overheat warning indi cator it will light or blink The buzzer will sound If the warning system has activated stop the engine and check the cooling water inlet for clogging 1 Port engine speed i...

Page 26: ...em If the oil level falls below the lower limit the warning system will activate Activation of warning device Engine speed will automatically decrease to about 2000 r min The oil level warning indicator will light The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the warning system has been activated stop the engine and check for the cause NOTE The w...

Page 27: ...Basic components 22 1 Oil filter 1 ZMU01952 ...

Page 28: ... does not have a capacity plate consult the boat manufacturer The information presented in this sec tion is intended as reference only It is not possible to provide complete in structions for every possible boat and motor combination Proper mounting depends in part on experience and the specific boat and motor combination WARNING EWM00830 Improper mounting of the outboard mo tor could result in ha...

Page 29: ...om of the boat NOTE The optimum mounting height of the out board motor is affected by the boat motor combination and the desired use Test runs at different heights can help deter mine the optimum mounting height Con sult your Yamaha dealer or boat manufacturer for further information on de termining the proper mounting height For instructions on setting the trim angle of the outboard motor see pag...

Page 30: ...ol 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 en gine speed occasionally 5 After the first 10 hours Operate the engine normally Use only straight gasoline in the fuel tank The Yamaha oil injection system provides proper lubrication for normal operation EMU27102 Preoperation checks WARNING EWM000...

Page 31: ... the flywheel and other rotating parts while the engine is running 3 Watch for oil flowing through the oil feed pipes After any air in the oil lines has been expelled the oil injection system should supply oil normally If no oil is flowing after 10 minutes of idling consult your Yamaha dealer CAUTION ECM01260 Be sure to take the above steps when op erating the engine after a long period of storage...

Page 32: ...pproximately 1 9 L 0 5 US gal 0 4 Imp gal can be added and the bottom oil level line indicates approximately 3 8 L 1 US gal 0 8 Imp gal can be added 2 Turn on the main switch The Yamaha oil injection system will automatically feed oil from the remote oil tank to the engine oil tank 3 Operate the engine normally CAUTION ECM00570 When the engine is operated for the first time or stored for a period ...

Page 33: ...e than 300 cm3 0 32 US qt 0 26 Imp qt 1500 cm3 1 6 US qt 1 31 Imp qt or less Add oil see page 26 Red Yellow Green 300 cm3 0 32 US qt 0 26 Imp qt or less more than 1500 cm3 1 6 US qt 1 31 Imp qt Check oil filter for clog ging Check battery cable connection Buzzer will sound Engine speed is auto matically reduced to about 2000 r min Red 300 cm3 0 32 US qt 0 26 Imp qt or less 1500 cm3 1 6 US qt 1 31 ...

Page 34: ...rless gas which could cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cab in areas well ventilated Avoid blocking exhaust outlets 1 If there is an air vent screw on the fuel tank cap loosen it 2 or 3 turns 2 If there is a fuel joint or a fuel cock on the boat firmly connect the fuel line to the joint or open the fuel cock 3 Squeeze the pri...

Page 35: ...tally pulling the lanyard during normal operation Loss of en gine 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 3 Turn the main switch to on 4 Open the throttle slightly without shifting using the neutral throttle lever or free ac celerator You may need to change the throttle ...

Page 36: ... engine Push in the main switch fully or the remote choke system will not operate 6 Turn the main switch to start and hold it for a maximum of 5 seconds 7 Immediately after the engine starts re lease the main switch and allow it to re turn to on CAUTION ECM00191 Never turn the main switch to start while the engine is running Do not keep the starter motor turning for more than 5 seconds If the star...

Page 37: ...whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked Consult your Yamaha dealer if the problem cannot be located and corrected EMU27740 Shifting WARNING EWM00180 Before shifting make sure there are no swimmers or obstacles in the water near you CAUTION ECM00220 To change the boat direction or shifting position from forward to reverse or vice versa first clos...

Page 38: ...te control lever quickly and firmly from neutral to reverse EMU27820 Stopping engine Before stopping the engine first let it cool off for a few minutes at idle or low speed Stop ping the engine immediately after operating at high speed is not recommended EMU27851 Procedure 1 Turn the main switch to off 2 After stopping the engine disconnect the fuel line or close the fuel cock if there is a fuel j...

Page 39: ...n accident If the boat begins to feel unstable or is hard to steer slow down and or readjust the trim angle EMU27881 Adjusting trim angle Power trim and tilt models WARNING EWM00750 Be sure all people are clear of the out board motor when adjusting the tilt an gle also be careful not to pinch any body parts between the drive unit and clamp bracket Use caution when trying a trim position for the fi...

Page 40: ...The trim tab can also be adjusted to help offset this effect When the bow of the boat is down it is easier to accelerate from a standing start onto plane Bow Up Too much trim out puts the bow of the boat too high in the water Performance and econ omy are decreased because the hull of the boat is pushing the water and there is more air drag Excessive trim out can also cause the propeller to ventila...

Page 41: ... there is a fuel joint on the outboard motor discon nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes Otherwise fuel may leak CAUTION ECM00241 Before tilting the outboard motor stop the engine by following the procedure on page 33 Never tilt the outboard mo tor while the engine is running Severe damage from overheating can result Do not tilt up the ...

Page 42: ...r could fall back down suddenly if oil in the power trim and tilt unit loses pres sure 5 Models equipped with trim rods Once the outboard motor is supported with the tilt support lever press the power trim and tilt switch down to retract the trim rods CAUTION ECM00250 Be sure to retract the trim rods complete ly during mooring This protects the rods from marine growth and corrosion which could dam...

Page 43: ...MU28060 Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water EMU28090 Power trim and tilt models power tilt models The outboard motor can be tilted up partially to allow operation in shallow water WARNING EWM00660 Place the gear shift in neutral before setting up for shallow water cruising Return the outboard motor to its normal position as so...

Page 44: ...e desired position using the power trim tilt switch 3 To return the outboard motor to the nor mal running position press the power trim tilt switch and slowly tilt the out board motor down EMU28191 Cruising in other conditions Cruising in salt water After operating in salt water wash out the cooling water passages with fresh water to prevent them from becoming clogged with salt deposits N ZMU03525...

Page 45: ...m flushing instructions see page 42 Cruising in turbid water Yamaha strongly recommends that you use the optional chromium plated water pump kit not available for some models if you use the outboard motor in turbid muddy water conditions ...

Page 46: ...Electric Starting carburetion system Choke valve Min cold cranking amps CCA EN 711 0 A Min rated capacity 20HR IEC 100 0 Ah Alternator output for battery DC 35 0 A Drive unit Gear positions Forward neutral reverse Gear ratio 1 81 29 16 Trim and tilt system Power trim and tilt Propeller mark 250GETO T M L250GETO TL ML Fuel and oil Recommended fuel Regular unleaded gasoline Min research octane 87 Re...

Page 47: ...motor support device such as a transom saver bar Consult your Yamaha dealer for further details EMU30272 Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time 2 months or longer several important procedures must be performed to prevent excessive damage It is advisable to have your outboard motor serviced by an authorized Yamaha dealer prior to storage However...

Page 48: ...all the silencer cover cap of fogging hole and top cowling 10 If the Fogging Oil is not available run the engine at a fast idle until the fuel sys tem becomes empty and the engine stops 11 Drain the cooling water completely out of the motor Clean the body thoroughly 12 If the Fogging Oil is not available re move the spark plug s Pour a tea spoonful of clean engine oil into each cylinder Crank seve...

Page 49: ...ettes and so on DO NOT SMOKE when charging or han dling batteries KEEP BATTERIES AND ELECTROLYTIC FLUID OUT OF REACH OF CHILDREN Batteries vary among manufacturers There fore the following procedures may not al ways apply Consult your battery manufacturer s instructions Procedure 1 Disconnect and remove the battery from the boat Always disconnect the black negative cable first to prevent the risk ...

Page 50: ...n cause serious overheating Be sure the connector is tightened securely on the fit ting after flushing the engine NOTE When flushing the engine with the boat in the water tilting up the outboard motor un til it is completely out of the water will achieve better results For cooling system flushing instructions see page 42 EMU28450 Cleaning the outboard motor After use wash the exterior of the outbo...

Page 51: ...hould be done by your Yamaha dealer or other qualified mechanic EMU28510 Replacement parts If replacement parts are necessary use only genuine Yamaha parts or parts of the same type and of equivalent strength and materi als Any part of inferior quality may malfunc tion and the resulting loss of control could endanger the operator and passengers Yamaha genuine parts and accessories are available fr...

Page 52: ... dealer Item Actions Initial Every 10 hours 1 month 50 hours 3 months 100 hours 6 months 200 hours 1 year Anode s external Inspection replace ment Anode s internal Inspection replace ment Battery Inspection charging Cooling water pas sages Cleaning Cowling clamp Inspection Fuel filter can be dis assembled Inspection cleaning Fuel system Inspection Gear oil Change Greasing points Greasing Idling sp...

Page 53: ...ustment Water pump Inspection replace ment Oil pump Inspection adjustment Oil tank water drain Inspection cleaning Spark plug s Cleaning adjustment replacement Item Actions Initial Every 10 hours 1 month 50 hours 3 months 100 hours 6 months 200 hours 1 year ...

Page 54: ...ft 250G L250G EMU28952 Cleaning and adjusting spark plug WARNING EWM00560 When removing or installing a spark plug be careful not to damage the insulator A damaged insulator could allow external sparks which could lead to explosion or fire The spark plug is an important engine com ponent and is easy to inspect The condition ZMU05307 ...

Page 55: ... 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 estimate of the correct torque is 1 4 to 1 2 a turn past fin ger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench EMU28962 Checking fuel system WARNING EWM00060 Gasoline and its vapors are highly ...

Page 56: ... to spill Catch fuel in a rag Wipe up any spilled fuel immediately The fuel filter must be reassembled carefully with the O ring filter cup and hoses in place Improper assembly or replacement could result in a fuel leak which could result in a fire or explosion hazard EMU29012 Cleaning fuel filter 1 Lift up and hold the locking tab to loosen the filter cup ring nut 2 Remove the filter cup catching...

Page 57: ...re 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 Results may vary depending on whether testing is conducted 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 smooth ly ...

Page 58: ...trim and tilt system WARNING EWM00430 Never get under the lower unit while it is tilted even when the tilt support lever is locked Severe injury could occur if the outboard motor accidentally falls Make sure no one is under the outboard motor before performing this test 1 Check the power trim and tilt unit for any sign of oil leaks 2 Operate each of the power trim and tilt switches on the remote c...

Page 59: ...lt your Yamaha dealer if any operation is abnormal EMU29171 Checking propeller WARNING EWM00321 You could be seriously injured if the en gine accidentally starts when you are near the propeller Before inspecting removing or install ing the propeller remove the spark plug caps from the spark plugs Also place the shift control in neutral turn the main switch to off and re move the key and remove the...

Page 60: ...spin freely on the shaft If this happens the shear pin must be replaced EMU30660 Removing the propeller EMU29194 Spline models 1 Straighten the cotter pin and pull it out using a pair of pliers 2 Remove the propeller nut washer and spacer if equipped 3 Remove the propeller and thrust wash er EMU30670 Installing the Propeller EMU29241 Spline models WARNING EWM00770 On counter rotation models be sur...

Page 61: ...ut does not align with the propeller shaft hole after tightening to the specified torque tighten the nut further to align it with the hole EMU29281 Changing gear oil WARNING EWM00800 Be sure the outboard motor is securely fastened to the transom or a stable stand You could be severely injured if the outboard motor falls on you Never get under the lower unit while it is tilted even when the tilt su...

Page 62: ...level plug 7 Insert and tighten the gear oil drain screw EMU29312 Inspecting and replacing anode s Yamaha outboard motors are protected from corrosion by sacrificial anodes Inspect the external anodes periodically Remove scales from the surfaces of the anodes Consult a Yamaha dealer for replacement of external anodes CAUTION ECM00720 Do not paint anodes as this would render them ineffective NOTE I...

Page 63: ...d so on DO NOT SMOKE when charging or han dling batteries KEEP BATTERIES AND ELECTROLYTIC FLUID OUT OF REACH OF CHILDREN CAUTION ECM00360 A poorly maintained battery will quickly deteriorate Ordinary tap water contains minerals harmful to a battery and should not be used for topping up 1 Check the electrolyte level at least once a month Fill to the manufacturer s rec ommended level when necessary ...

Page 64: ...tery See the illustrations of the wiring connections This cable must be made from wire equivalent to the starting battery cable WARNING EWM00600 Use of smaller wire could lead to a fire NOTE If a battery selector switch is desired consult your YAMAHA dealer about correct wiring EMU29370 Disconnecting the battery Disconnect the BLACK cable from the NEG ATIVE terminal first Then disconnect the RED c...

Page 65: ...t bottom should be kept as clean of ma rine growth as possible If necessary the boat bottom can be coated with an anti foul ing paint approved for your area to inhibit marine growth Do not use anti fouling paint which includes copper or graphite These paints can cause more rapid engine corrosion ...

Page 66: ...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 29 Q Has fuel pump malfunctioned A Have serviced by a Yamaha deal...

Page 67: ...p 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 ...

Page 68: ...ed or of incorrect type A Inspect spark plug s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or other obstructions in fuel system Q Is fuel filter clogged A Clean or replace filter Q Is fuel contaminated or stale A Fill tank with clea...

Page 69: ...ARNING EWM00870 The outboard motor can be seriously damaged by a collision while operating or trailering 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 Inspect the control system and all com ponents for damage Also inspect the boat for damage 3 Whether damage is found or not retur...

Page 70: ...ilt unit the power tilt unit the engine can be tilted manually 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 by turning it clockwise EMU29531 Starter will not operate If the starter mechanism does not operate the engine cannot be cranked with the start er the engine can be started with an ...

Page 71: ...ngerous 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 when the engine is running Do not install the starter mechanism or top cowling after the engine is running Do not touch the ignition coil spark plug wire spark plug cap or other elec trical components when starting or op erat...

Page 72: ... Be prepared for slightly increased speeds when operat ing at low throttle settings CAUTION ECM01030 The emergency circuit should only be used long enough to return to port for re pairs Do not continue to operate the en gine without getting repairs If the engine is warm and fails to start dis connect the emergency connector and try to start the engine EMU29741 Low oil level warning activates If th...

Page 73: ... reserve oil capacity is 1500 cm3 1 6 US qt 1 31 Imp qt The oil feed pump will not operate if the engine is tilted up more than 35 Put the engine in the upright position not tilted before using the emergency switch EMU29760 Treatment of submerged motor If the outboard motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion may begin almost immedi ately If you cannot imm...

Page 74: ...carburetor fuel filter and fuel line 4 Feed fogging oil or engine oil through the carburetor s and spark plug holes while cranking with the manual starter or emergency starter rope 5 Take the outboard motor to a Yamaha dealer as soon as possible CAUTION ECM00400 Do not attempt to run the outboard motor until it has been completely inspected ZMU01910 ZMU01911 ...

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Page 76: ...YAMAHA MOTOR CO LTD Printed on recycled paper Printed in Japan July 2005 0 1 1 ...

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