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5. Check the electrode distance with a caliper. The distance should be
between 0.6 and 0.8mm. If it does not match, adjust it carefully.
6. Carefully put back the spark plug, starting its threading manually to avoid
the damage of the thread. With the spark plug fully threaded make a final
tightening with a spark plug wrench, according to the following
recommendations:
New spark plugs: 1/2 turn
Used spark plugs: 1/8 to 1/ 4 turn
7. Put back the cap of the spark plug and close the access cover.
NOTE: The spark plug must be firmly tightened. An incorrectly fitted spark
plug can heat up and even damage the engine. On the other hand, over-tightening
can damage the spark plug and damage the thread of the cylinder head.
8.4 Spark arrestor maintenance
CAUTION: Let the generator cool down completely, before performing a spark
arrestor maintenance.
1. Remove the screw that hold the spark arrestor (1).
2. Remove the spark arrestor (2) and clean it with a brush (3).
3. Reinstall the spark arrestor.
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