Spark Arrester Maintenance - Hyundai HY4000SEi User Manual

8.3.2) Take off the spark plug with the spark plug
spanner.
8.3.3) Visual inspection the spark plug. Change a
new one if its insulator cracked or chipped.
Clean it with a wire brush if the spark plug is
reused.
0.60-0.70mm
(0.024-0.028in)
8.3.4) 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.
8.3.5) 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.
8.3.6) Reinstall the spark plug cap
8.3.7) 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 screws, and remove the
muffler guard.
NOTE
only be maintained professional servic-
ing dealer, can not be maintained by
user
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