-11-
Clogged fuel filter Cleaning
Inadequate warm-up, especially in
cold weather
Warm-up
Faulty ignition coil Replacement
Clogged cylinder exhaust port or
carbon clogging the muffler
Cleaning
Clogged air cleaner Cleaning
The chain brake is on. Release
Faulty ignition coil Replacement
Dirt clogging the carburetor
high-speed fuel line
Cleaning
Faulty carburetor pump diaphragm Replacement
Air intake from the gasket portions Inspection
Revolutions too low for idling Adjustment
Revolutions too low for idling Adjustment
Revolutions too low for idling Adjustment
Revolutions too high for idling Adjustment
Worn or faulty clutch Inspection/replacement
The engine stalls.
High speed unavailable
Pulling the throttle lever
increases the speed.
Revolutions fluctuate.
The engine stalls.
The engine stalls.
When the speed rapidly
decelerates from high speed …
The engine stalls.
When the product is tilted during
idling …
Starts rotating.
O
Starts rotating.
The engine starts, but when the
throttle is pulled …
When the revolutions increase
…
The chain blades start rotating
during idling.