LIFAN Power USA 173F-R Manual page 37

TROUBLE
1. Normal cylinder compression.
2. Normal spark plug spark.
3. Something wrong with the fuel
system.
4. Smooth fuel flow.
1. Normal cylinder compression.
2. Normal spark supply.
3. Normal high – pressure coil
spark.
4. Spark plug is in bad conditions.
CAUSE
Fuel is too filthy or deteriorated.
There is water in fuel.
Too much fuel in engine.
Wrong fuel brand.
Too much carbon deposit and dirt
around electrodes.
Electrodes are burn damaged
seriously or insulators damaged.
Improper electrodes gap.
34
REMEDY
Replace.
Replace.
Drain extra fuel, dry up spark plug
electrodes.
Select proper fuel brand corresponding
with the requirements.
Clear away.
Replace spark plug.
Adjust to proper value.