Nakayama NS4010 Mode D'emploi page 10

EN
Troubleshooting
The spark plug doesn't
produce a spark
The spark plug produces a
spark
Speed or power insufficiency
Speed weaving too big
Speed too high
Abnormal sound
Carburetor leakage
10
Problem
Spark plug
Other
Good compression
No gasoline flowing out after
screwing off drain screw at
the bottom of the carburetor
Oil supply normal but
poor compression
Ignition and gasoline supply
normal
Choke not opening.
Muffler ventilation is poor.
Moving parts are worn.
Governor kit isn't reaching
optimum balance.
Ignition energy too low.
Valve gap too big.
Cylinder head existing carbon
deposit.
Governor kit isn't reaching
optimum matching state.
Wrong carburetor.
Spark plug gap not correct.
Governor bar not pressing
the governor slider tight or
governor slider off.
Improper valve gap.
Cam gear is damaged.
Pin valve sticking due to dirt
build-up.
O-ring deformed.
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Cause
Deposits on the spark plug.
Spark plug gap too big or too
small.
Spark plug insulator
damaged.
Igniter damaged
Flywheel magnetic force
weak.
Too much fuel in the
cylinder.
Improper fuel or water or
dirt in the fuel.
Pin valve blocked
Piston ring worn.
Spark plug loose.
Cylinder head leaking, valve
gap or timing wrong.
Poor contact of high contact
cable with the spark plug.
Stopping switch malfunction
or short circuit.
Machine oil alarm damaged.
Solution
Clear the deposits.
Adjust to 0.7-0.8.
Replace the spark plug.
Replace igniter.
Replace flywheel.
Screw out spark plug, dry and
screw in.
Change fuel.
Wash or replace carburettor
Replace.
Screw in tightly.
Clear, reinstall or readjust.
Eliminate and correct.
Eliminate.
Replace.
Open the choke.
Replace the muffler.
Check or replace.
Adjust the governor kit.
Replace the igniter or replace
the flywheel.
Adjust to specified range.
Clear the carbon deposit.
Adjust the governor kit.
Replace the carburetor.
Adjust the gap.
Readjust or assemble the
governor slider.
Adjust the valve gap.
Replace the camshaft.
Lightly tap carburetor or
clean.
Replace.