TOHATSU MFS 75A Owner's Manual page 91

* Low speed ESG operates.
*
*
*
*
*
Low compression
Valve timing is not correct (Belt is
stretched or installed
incorrectly).
Valve clearance is defective.
Valve seat sealing is defective.
Piston, piston ring and/or cylinder is
worn excessively.
Combustion chamber carbon
deposition is too much
Spark plug is loose.
Cooling water is lacking (water pump
* * *
is defective or clogged).
* * * Thermostat operation is defective.
Anti-cavitation plate is damaged.
Use of mismatched propeller.
Propeller is damaged or deformed.
Thrust rod position is not correct.
Boat is unbalanced by load position.
Transom installation height is too high
or too low.
Throttle link adjustment is defective.
TROUBLESHOOTING
Possible cause
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