64
14
13
12
11
10
9
8
7
6
5
4
3
2
1
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
●
●
●
●
●
Low compression
●
●
Carbon deposits in the combustion chamber
●
●
Incorrect valve clearance
●
Low oil pressure/level
ENGINE OIL
SYSTEM
●
●
●
Low oil level
●
●
Use of improper oil
●
●
●
Oil deterioration
●
●
●
Clogged oil strainer
●
●
●
Faulty oil pump
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
Summary of Contents for MFS 8A3
Page 1: ...MANUAL 8A3 9 8A3 MFS OWNER S OB No 003 11082 5...
Page 6: ......
Page 68: ...M E M O...
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