TOHATSU MFS 40A Owner's Manual page 91
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Also See for MFS 40A:
- Owner's manual (358 pages) ,
- Quick reference manual (15 pages) ,
- Owner's manual (88 pages)
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91
TROUBLESHOOTING
Possible cause
Low compression
Carbon deposits in the combustion chamber
Incorrect valve clearance
Low oil pressure/level, oil pump failure, Clogged
oil filter (Pressure switch ON)
Insufficient cooling water flow, clogged or
defective pump
Faulty thermostat
Cavitations 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
Insufficient throttle aperture
11
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