
1. Measure the electrode gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.
Specified spark plug:
CPR7EA-9(NGK)
The spark plug is an important engine component
and is easy to inspect. The condition of the spark
plug can indicate the condition of the engine.
The ideal color of the procelain insulator around
the center electrode is a medium-to-light tan for a
vehicle that is being ridden normally.
You should periodically remove and inspect the
spark plug because heat and deposits will cause
the spark plug to slowly break dwon and erode. If
carbon and other deposits are excessive, you
should replace the spark plug with the specified
plug.
Inspection
a. Spark plug gap
Installation
Spark plug gap:
0.8-0.9 mm(0.031-0.035 in)
2. Clean the surface of the spark plug gasket
and its mating surface, and then wipe off any
grime from the spark plug threads.
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