as necessary by carefully bending the side electrode.
Plug gap
Fig. 17 Spark Plug Gap
CAUTION
■The spark plug must be securely tightened. An improperly tightened plug can become very hot and
possibly damage the generator.
■Never use a spark plug with an improper heat range.
7. Install the spark plug carefully, by hand, to avoid cross-threading.
8. After a new spark plug has been seated by hand, it should be tightened 1/2 turn with a wrench to
compress its washer.
If a used plug is being reinstalled, it should only require 1/8 to 1/4 turn after being seated.
9. Reinstall the spark plug inspection cover and tighten the cover screw.
10. Close and latch the left side maintenance cover.
7.5 Spark arrester maintenance
WARNING
■ If the generator has been running, the muffler will be very hot. Allow it to cool before proceeding.
CAUTION
■ The spark arrester must be serviced every 100 hours to maintain its efficiency.
1. Remove the two bolts securing the handle.
2. Remove the rear cover bolts and carefully remove the rear cover.
3. Unscrew the clamp on the spark arrestor and remove it from the exhaust pipe.
4. Use a brush to remove carbon deposits from the spark arrester screen.
NOTE
■ Inspect the spark arrester screen for holes or tears. Replace if necessary.
5. Reinstall the spark arrester and tighten securely.
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