16
GENERAL TROUBLESHOOTING
Cylinder worn.
Replace the cylinder.
Piston and piston ring are
worn out.
Replace.
No spark.
Spark plug electrode is wet. Dry the spark plug.
Spark plug has carbon
deposit.
Remove the carbon deposit.
Spark plug insulation is
broken.
Replace the spark plug.
Spark plug gap is too big/
small.
Adjust to 0.026”±0.002” (0.65±0.05 mm).
Spark plug electrode is burnt
out.
Replace the spark plug.
High voltage line of the
ignition coil is broken.
Replace the high voltage line.
Ignition coil is broken or
burnt out.
Replace the ignition coil.
Poor contact of the high
voltage line and the jump
ring.
Repair.
Spark plug cap is broken.
Replace.
Engine will not start but
spark plug fires.
Excess fuel inside spark
plug.
Remove the spark plug. Clip the fuel tube
for fuel entering. Press the start button to
remove the fuel inside the cylinder.
Fuel is not clean, with water. Replace the fuel.
Cylinder and piston ring
wear.
Replace.
The spark plug loosens.
Tighten.
Crankcase has air leakage. Replace the gasket.
Cylinder has air leakage.
Replace the gasket.
No fuel.
Add fuel.
No fuel in primer bulb.
Prime the bulb.
Engine is not choked.
Engage the choke.
Fuel tank valve is blocked.
Remove the blockage.
The engine cannot be
stopped.
The switch wire does not
connect.
Connect the wire.
The switch is broken.
Replace.
