Hitachi CS 33EA Technical Data And Service Manual page 12

Pull the recoil starter.
Pulling is possible when you
feel a slight compression.
Impossible to pull
OK
Remove the spark plug to
check for sparks. Sparks are
generated.
No spark
OK
Return the spark plug and plug
cap to the original positions, and
then perform proper startup
operation. Confirm that the tip of
the spark plug becomes wet with
fuel.
Dry
OK
There is compression. There is compression.
No compression
OK
The engine starts, but when the
throttle is pulled ...
The engine stalls
OK
Repair flow chart
Broken piston ring
Seized piston or cylinder
Broken connecting rod needle
bearing
Seized ball bearing
Magneto rotor contact with ignition
coil
Broken starter
Faulty startup pawl
Stop switch not in the startup position
Dirty or faulty spark plug
Disconnected or improperly
connected high voltage cord and
other wiring
Ground connection
voltage cord and other wiring
Disconnected or faulty ignition coil
Excessive gap between magneto
rotor circumference and ignition coil
Clogged fuel filter
Cracked fuel pipe
Faulty tank vent hole (check valve)
Faulty pump diaphragm of the
carburetor
Dirt clogging the carburetor
Faulty piston ring
Worn piston ring
Worn piston
Worn or damaged oil seal
Clogged fuel filter
Inadequate warm-up, especially in
cold weather
-9-
Replacement
Replacement
Replacement
Replacement
Adjustment
Inspection/replacement
Inspection/replacement
Setting to the startup
position
Cleaning/inspection
Inspection
of the high Inspection
Replacement
Adjustment
Cleaning/replacement
Replacement
Replacement
Replacement
Cleaning
Cleaning/replacement
Replacement
Replacement
Replacement
Cleaning
Warm-up