Nakayama 032861, Manual

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7
Troubleshooting
Problem Cause Solution
No spark at the spark plug Spark Plug Spark Plug deposit existing.
Spark plug gap too big or too
small
Spark plug insulator dam-
aged
Clear Deposit
Adjust to 0.7-0.8
Renew spark plug
Other
Igniter damaged
Flywheel magnetic force
week
Renew igniter
Renew flywheel
Having spark at the spark
plug
Compressing fine Cylinder fuel too much
Fuel poor, having water or
dirt
Screw out spark plug, dry
and screw in.
Renew fuel
No gasoline flowing out after
screwing off drain screw at
the bottom of the carburet-
tor.
Pin valve blocked Wash or renew carburettor
Supplying oil normal, but
compressing poor.
Piston ring worn
Spark plug loosen
Cylinder head leaking, valve
gap or timing wrong
Renew
Screw in tightly
Clear, reinstall or readjust
Igniting and supplying gaso-
line normal
High voltage cable contacting
with spark plug poor.
Stopping switch malfunction
or short circuit.
Machine oil alarm damaged.
Eliminate and correct
Eliminate
Renew
Speed or power insufficiency Choke no opening
Muffler Ventilation is poor
Moving parts are worn
Governor kit not to reach
optimum balance
Igniting energy too low
Valve gap too big
Cylinder head existing carbon
deposit
Open the choke
Renew the muffler
Check or replace
Adjust the governor kit
Renew the igniter or renew
the flywheel.
Adjust to specified range
Clear the carbon deposit.
Speed weaving too big Governor kit no to reach
optimum matching state
Wrong carburettor
Spark plug gap not correct
Adjust the governor kit
Renew the carburettor
Adjust the gap
Speed too high Governor bar nto pressing
the governor slider tight or
governor slider off.
Readjust or assemble the
governor slider.
Abnormal sound Wrong the valve gap
Cam gear is damaged
Adjust the valve gap
Renew the camshaft
Carburettor leakage Pin valve sticking with dirt Lightly tap carburettor or
clean
O-Ring deformed Renew