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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 bending the electrode carefully.
8.3.7 Refit 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. If refitted incorrectly (i.e. cross
threaded) this will damage the cylinder head.
Never use a spark plug with an improper heat range.
8.4 Spark Arrester Maintenance.
WARNING
The spark arrester must be maintained every 100 hour service.
8.4.1 Remove the four/six screws, and remove the exhaust guard.
HY1000Si
PAGE 23
HY2000Si
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