TOHATSU MFS 6A3Z Manuel De L'utilisateur page 84

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TROUBLESHOOTING
Possible cause
Low compression
Carbon deposits in the combustion chamber
Incorrect valve clearance
Low oil pressure/level
Low oil level
Use of improper oil
Oil deterioration
Clogged oil strainer
Faulty oil pump
Incorrect adjustment of throttle link
Insufficient cooling water flow, clogged or defec-
tive 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
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