Hitachi CS 33EB Service Manual page 5

Pulling the throttle lever
increases the speed.
High speed unavailable
OK
When the revolutions increase
...
Revolutions fluctuate
OK
Starts up, and when idling
mode is set ...
The engine stalls
OK
When speed rapidly
OK
decelerates from high speed...
The engine stalls
OK
When the product is tilted
at idling...
The engine stalls
OK
The saw chain starts rotating
during idling.
Starts rotating
Clogged cylinder exhaust port or carbon
clogging the muffler
Clogged air cleaner
The chain brake is on.
Dirt clogging the carburetor high-speed
fuel line
Faulty carburetor pump diaphragm
Air intake from the gasket portions
Revolutions too low for idling
Revolutions too low for idling
Revolutions too low for idling
Revolutions too high for idling
Worn or faulty clutch
-4-
Cleaning
Cleaning
Release
Cleaning
Replacement
Inspection
Adjustment
Adjustment
Adjustment
Adjustment
Inspection/replacement