Troubleshooting; Engine Does Not Start - Zenoah G230RC Owner's Service Manual

9. Trouble Shooting

1) ENGINE DOES NOT START

Description
No spark in the spark plug
Spark Plug
Magneto
Switch
Sparks appear in the spark plug
Compression &
fueling is normal
Fueling normal but
poor compression
No fuel supply
2) LACK OF POWER OR UNSTABLE RUNNING
Description
Compression is normal
and no misfire
Overheating
Others
Cause
1. Wet spark plug electrodes
2. Carbon deposited on the electrodes
3. Insulation failure by insulator damage
4. Inproper spark gap
5. Burn out of electrodes
1. Ignition coil inside failure
2. Damaged cable sheath or disconnected cable
1. Switch is OFF
2. Switch failure
3.Primary wiring earthed
1. Over sucking of fuel
2. Too rich fuel
3. Overflow
4. Clogging of air cleaner
5. Faulty fuel
1. Worn out cylinder, piston, or piston ring
2. Gas leakage from cylinder and crank case gasket
1. Choked breather air hole
2. Clogged carburetor
3. Clogged fuel filter
Cause
1. Air penetration from fuel pipe joints, etc
2. Air penetration from intake tube joint or
carburetor joint
3. Water in fuel
4. Piston start to seizure
5. Muffler choked with carbon
1. Fuel too lean
2. Clogging of cylinder fin with dust
3. Poor fuel quality
4. Carbon deposited in the combustion chamber
5. Spark plug electrode red hot
1. Dirty air cleaner
2. Over loading
Countermeasure
Make them dry
Cleaning
Exchange
Adjust to 0.6~0.7mm
Exchange
Exchange
Exchange or repair
ON the switch
Exchange
Repair
Drain excess fuel
Adjust carburetor
Carburetor adjust or exchange
Wash with mixed gasoline
Change with proper fuel
Exchange
Apply liquid gasket and reassemble.
Cleaning
Cleaning
Exchange fuel filter
Countermeasure
Secure connection
Change gasket or tightening screws
Change with good fuel
Replace piston(and cylinder)
Cleaning
Adjust carburetor
Cleaning
Exchange with proper fuel
Cleaning
Thoroughly clean, adjust spark gap
[ 0.6~0.7(0.023~0.028in) ]
Wash with mixed gasoline
Reduce load
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