9. Maintenance
MA2
0.6~0.7mm
MA3
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
WARNING
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
IMPORTANT
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
In case the fuel filter is clogged or the fuel pipe is bent, engine speed may not increase or may become unstable.
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