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缸压计
c. Ignition system
■ Fill in oil to the demanded level.
■ Use specified UR5 spark plug
■ Spark plug inspection
1. Disassemble spark plug
2. Install spark plug onto spark plug cap.
3. Set the oil switch to the “ON” position. Ground the negative (—) electrode (i.e. threaded part) of
the spark plug against the shroud and pull the recoil starter rope to check the spark plug. You
should see a clear spark.
■ Don’t pull the recoil starter while touching the high tension wire with wet hands. High voltage is
generated and very dangerous.
■ Drain the gasoline from the fuel tank and carburetor.
■ Pull the recoil starter several times to release the unburned gas in the cylinder with the engine
switch OFF.
Pressure gauge
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