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cracked or chipped. Clean with a wire brush if the spark plug is reused.
5.
Measure the spark plug gap with a feeler gauge. The normal value is: 0.6-
0.7mm (0.024- 0.028in). Adjust the gap by carefully bending the electrode.
6.
Carefully reinstall the spark plug by hand, to avoid cross-threading. A new
spark plug should be tightened 1/2 turn with a spanner. A used spark plug
should be tightened 1/8 to 1/4 turn with spanner.
7.
Reinstall the spark plug cap.
8.
Reinstall the spark plug maintenance cover.
NOTE
The spark plug must be securely tightened or it could cause the spark
plug to heat up, enough to damage the engine.
Never use a spark plug with an improper heat range.
7.5 SPARK ARRESTER MAINTENANCE
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3
1.
Loosen the screws, and remove the handle and rear housing.
2.
Take off the spark arrester from the muffler (after the engine has cooled
down)
3.
Use a brush to remove carbon deposits from the spark arrester. If the spark
arrester is worn down, replace it.
4.
Reinstall the spark arrester and muffler guard.
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