TROUBLESHOOTING80
11
COMPRESSION &
OIL SYSTEM
Low compression
Carbon deposits in the combustion chamber
Incorrect valve clearance
Low oil pressure/level
OTHERS
Incorrect adjustment of throttle link
Insufficient cooling water flow, clogged or defective pump
Faulty thermostat
Cavitation or ventilation
Incorrect propeller selection
Damaged or bent propeller
Improper thrust rod position
Unbalanced load on boat
Transom too high or too low
A great deal of air is contained inside pump
Engine falling to start
Engine starting but stopping soon
Poor idling
Poor acceleration
Engine speed abnormally high
Engine speed abnormally low
Overheating of engine
Power tilt inoperative
Possible cause
MFS15-20D_EUR_EN_141119N.book 80 ページ ２０１４年１２月２３日 火曜日 午後６時４１分
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