Spark Arrester Maintenance - Cobra IG20SI User Manual

8.3.6) Measure the spark plug gap with a feeler
gauge. The normal value:0.6-0.7mm(0.024-
0.028in). Adjust the gap by bend one of the
electrode carefully.
8.3.7) Reinstall the spark plug carefully, 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.
8.3.8) Reinstall the spark plug cap
8.3.9) Reinstall the spark plug maintenance cover.
NOTE
• The spark plug must be securely tightened.
Tightening in wrong way will cause spark plug
hot, even damage the engine.
• Never use a spark plug with an improper heat
range.

8.4) Spark Arrester Maintenance

WARNING
The spark arrester must be maintained every
100h service.
8.4.1)Remove the six screws, and remove the
muffler guard.
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