7-13
Rear Side
1. Lift the fuel tank by referring to
the FUEL TANK LIFT section.
2. Remove the spark plug with a
spark plug wrench.
NOTE: Pry up the spark plug cap
with a screwdriver or a bar if it is
hard to remove by hand. Do not
pull the spark plug cord.
Spark Plug Cleaning
To maintain a hot, strong spark,
keep the plug free from carbon.
Adjust the gap to 0.6 – 0.7 mm
(0.024 – 0.028 in) for good igni-
tion. Use a thickness (feeler)
gauge to check the gap.
Installation
To install a spark plug, turn it in as
far as possible with your fingers,
then tighten it with a wrench.
Carefully turn the spark plug by
hand into the threads until it is fin-
ger tight. If the spark plug is new,
tighten it with a wrench about 1/2
turn past finger tight. If you are
reusing the old spark plug, tighten
it with a wrench about 1/8 turn
past finger tight.
CAUTION
Dirt can damage your engine if
it enters an open spark plug
hole.
Cover the spark plug hole
whenever spark plug is
removed.
CAUTION
A crossthreaded or overtight-
ened spark plug will damage
the aluminum threads of the
cylinder head.
Follow the procedure below to
tighten the spark plug properly.
0.6 – 0.7 mm
(0.024 – 0.028 in)
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