70
1. THE ENGINE DOES NOT START
Motor status
Possible cause
Remedy
The
compression
in the
cylinder is
normal.
The
condition
of the
spark plug
is normal.
There is a problem within
the fuel system.
The fuel tank is empty.
Fuel filter clogged.
Refuel the fuel tank.
Clean the fuel filter.
The
condition of
the fuel
system is
normal.
Fuel
problem.
Dirty fuel.
Water in fuel.
Too much fuel in cylinder.
Incorrect fuel mixture ratio.
Change the fuel.
Change the fuel.
Remove the spark plug and
dry it thoroughly.
Mix a fuel mixture in the
correct gasoline/oil ratio.
The
condition
of the fuel
system is
normal.
The spark
given by the
high-voltage
cable is
normal.
Spark plug
problem.
The spark plug is fouled with oil
deposits.
The spark plug insulation is
damaged.
The gap between the electrodes
of the spark plug is too small.
Remove the deposits.
Replace the spark plug.
Adjust the gap between the
electrodes of the spark plug to
0.6 - 0.7 mm.
The spark given by the
high-voltage cable is not
normal
The high-voltage cable is loose
or broken.
The spark plug is loose.
Tighten or replace the
high-voltage cable.
Retighten the spark plug.
The
condition of
the fuel
system is
normal.
The
condition
of the
ignition
system is
normal.
Low compression
The piston ring is worn.
The piston ring is broken.
The piston ring is stuck due to
carbon.
The spark plug is loose.
The contact surface of the
cylinder and crankshaft leaks.
Have the piston ring replaced
by an authorized workshop.
Have the piston ring replaced
by an authorized workshop.
Have the carbon removed by
an authorized workshop.
Retighten the spark plug.
Have the leakage repaired by
an authorized workshop.
The compression is
normal.
Poor contact between the
high-voltage cable and the spark
plug.
Faulty or short-circuited switch.
Retighten the spark plug
connector.
Have the switch repaired or
replaced by an authorized
workshop.
