2. Use the spark plug wrench in the owner’s
tool kit to remove the spark plug as shown.
Inspection
The spark plug is an important engine compo-
nent and is easy to inspect. The condition of the
spark plug can indicate the condition of the
engine.
The ideal color on the white insulator around
the center electrode is a medium-to-light tan
color for an AT V that is being ridden normally.
Do not attempt to diagnose such problems
yourself.
1. Spark plug wrench
Instead, take the AT V to a AT V dealer.
You should
periodically remove and inspect the spark plug
because heat and deposits will cause the spark
plug to slowly break down and erode. If elec
trode erosion becomes excessive, or if carbon
and other deposits are excessive, you should re-
place the spark plug with the specified plug.
Specified spark plug:
DR8EA (NGK)
Installation
1. Measure the electrode gap with a wire thick-
ness gauge and, if necessary, adjust the gap to
specification.
Spark plug gap:
0.6 0.7 mm (0.02 0.03 in)
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Summary of Contents for 350ATV
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