To Check The Spark Plug - Yamaha KODIAK 700 YFM70KDXH Owner's Manual

4. Remove the spark plug as shown, with the
spark plug wrench included in the owner's
tool kit.
1. Spark plug wrench
8

To check the spark plug

1. Check that the porcelain insulator around the
center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the vehi-
cle is ridden normally).
TIP
If the spark plug shows a distinctly different color,
the engine could be operating improperly. Do not
attempt to diagnose such problems yourself. In-
1
stead, have a Yamaha dealer check the vehicle.
2. Check the spark plug for electrode erosion
3. Measure the spark plug gap with a wire thick-
8-18
and excessive carbon or other deposits, and
replace it if necessary.
Specified spark plug:
NGK/CPR7EA-9
ness gauge and, if necessary, adjust the gap
to specification.