72
TROUBLESHOOTING
Incident
Probable cause
Page
Engine does not start:
1.
No fuel.
2.
The throttle control lever is in the “STOP”
position.
3.
Fuel shut-off valve is closed.
4.
Spark plug cord incorrectly attached or
disconnected.
-
5.
Spark plug defective or incorrect electrode gap.
6.
Engine flooded.
Hard starting or loss of
power:
1.
Dirt in petrol tank.
-
2.
The air cleaner is dirty.
3.
Water in petrol tank and carburettor.
-
4.
Vent in fuel cap and/or carburettor clogged.
-
Erratic operation:
1.
Spark plug faulty or improperly gapped.
2.
The air cleaner is dirty.
Engine overheats:
1.
Spark plug improperly gapped.
2.
The air cleaner is dirty.
3.
Dirty cooling fins.
-
4.
Low oil level.
5.
The flywheel’s protector grid, located under the
recoil starter, is restricted by blades of grass,
etc..
-
Excessive vibration:
1.
Loose blade or engine mounting bolts.
2.
Blade unbalanced.
OM536K3_D-GB-F.book Page 72 Lundi, 18. février 2008 9:07 09