94
Spark Plug Inspection
Removal
1. Remove the console. (See Chapter 8 for
console removal and installation proce-
dures.)
2. Remove the spark plug cap.
1. Spark plug cap
3. Use the spark plug wrench in the 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 en-
gine.
The ideal color of the porcelain insulator
around the center electrode is a medium-to-
light tan for a vehicle that is being ridden nor-
mally. You should periodically remove and in-
spect the spark plug because heat and deposits
will cause the spark plug to slowly break down
and erode. If electrode erosion becomes exces-
sive, or if carbon and other deposits are exces-
sive, you should replace the spark plug with the
specified plug. Measure the spark plug gap with
a wire thick- ness gauge and, if necessary, ad-
just the gap to specification.
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