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• Clogging of air filter reduces engine
performances. Inside of an engine will quickly
wear by dusts if an air cleaner cover is not
correctly fitted or if a filter is missed, deformed,
or damaged.
• Avoid dusts to penetrate into the engine when
removing the air filter. Cover an air inlet with a
cloth after removing the filter.
• To keep the engine performance, change the air
filter at every 20 hours of operation.
■ SPARK PLUG
Do not touch the spark plug by bare hands
immediately after stopping the engine. There is
a danger of burn for its high temperature.
About every 25 hours of operation, remove the
spark plug and clean contaminant on electrodes
with a wire brush, etc.
Applicable gap between the electrodes is
0.6~0.7mm.
Use specified spark plug for exchange.
Specified Spark Plug:
NGK BPM8Y
Electrodes of the spark plug are contaminated by
over sucking of fuel or by poor quality oil. This may
cause the engine start difficult.
■ FUEL FILTER
About every 25 hours of operation, remove a fuel
filter from the fuel tank and remove adhered debris.
In case the filter is clogged, exchange with a new
one.
Care should be taken not to bend a fuel pipe when
setting the filter back into the tank.
(1) Fuel filter
IMPORTANT
WARNING
IMPORTANT
9. Maintenance
MA3
0.6~0.7mm
MA2
21