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How to inspect and adjust the spark plug
Remove the spark plug with a plug wrench and clean away any
carbon deposits on the electrode (A) with a wire brush and wipe
away any moisture if present.
Replace the spark plug with a new one if the ceramic part has
cracked or the electrode have suffered extensive wear and tear.
Please adjust the spark plug electrode clearance (B) to0.028-
0.031in (0.7-0.8mm).
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When attaching a spark plug onto the engine, screw by hand at first before tightening with a plug
wrench. If you start by using a plug wrench to screw in the spark plug, there is a danger of cross-
threading it. (See page 34, Specifications.)
How to inspect the fuel pipe
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When changing the fuel pipe, take care that there is no dust or dirt inside.
How to clean and inspect the air filter
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Please be sure to periodically clean the air filter. If the air filter becomes clogged, not only will
output inefficiency and fuel consumption increase, fire can also be caused a result of the increase
in exhaust fumes.
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Do not start the engine with the air filter removed. Dirt and dust will be sucked into the engine,
causing engine trouble and abnormal wear and tear.
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Do not operate near lit tobacco or other sources of ignition.
The rubber parts of the fuel pipe will deteriorate even if
you do not use the machine. Change the attaching bands
and fuel pipe parts every 3 years or immediately if they
have split.
Always take care that the fuel pipe and fastening bands
do not become loose or split.
NOTICE
DANGER
NOTICE
WARNING
NOTICE
