Zenoah G240RC - Manual (Page 20)

20
TROUBLE SHOOTING
2) LACK OF POWER OR UNSTABLE RUNNING
Description Cause Countermeasure
Compression is normal 1. Air penetration from fuel pipe joints, etc Secure connection
and no misfire 2. Air penetration from intake tube joint or
Change gasket or tightening screws
carburetor joint
3. Water in fuel Change with good fuel
4. Piston start to seizure Replace piston(and cylinder)
5. Muffler choked with carbon Cleaning
Overheating 1. Fuel too lean Adjust carburetor
2. Clogging of cylinder fin with dust Cleaning
3. Poor fuel quality Exchange with proper fuel
4. Carbon deposited in the combustion chamber Cleaning
5. Spark plug electrode red hot Thoroughly clean, adjust spark gap
[ 0.6~0.7(0.023~0.028in) ]
Others 1. Dirty air cleaner Wash with mixed gasoline
2. Over loading Reduce load