70
11
TROUBLESHOOTING
Engine falling to start
Engine starting but stopping soon
Poor idling
Poor acceleration
Engine speed abnormally high
Engine speed abnormally low
Boat speed low
Overheating of engine
W
arning lamp ON
Power tilt inoperative
Possible cause
COMPRESSION
& OIL
SYSTEM
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Low compression
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Carbon deposits in the combustion chamber
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Incorrect valve clearance
●
Low oil pressure/level
ENGINE OIL
SYSTEM
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Low oil level
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Use of improper oil
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Oil deterioration
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Clogged oil strainer
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Faulty oil pump
OTHERS
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Incorrect adjustment of throttle link
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Insufficient cooling water flow, clogged or defective pump
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Faulty thermostat
●
●
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●
Cavitation or ventilation
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Incorrect propeller selection
●
●
●
●
●
●
Damaged or bent propeller
●
●
●
●
Improper thrust rod position
●
●
●
●
●
Unbalanced load on boat
●
●
●
●
●
Transom too high or too low
OM_E_10HP_body_111213.indd 70
11/12/13 13:24
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