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9. Maintenance
■ PERIODICAL SERVICE POINTS
1. Air cooling system
Dust clogging around the cooling system and the
cylinder fins will cause overheating of the engine.
Periodically check and clean the cooling system
and the cylinder fins with a brush after removing
the cylinder cover, the air cleaner and the recoil
case. When installing the cylinder cover and the
cooling system, make sure that switch wires and
grommets are positioned correctly in place. (F31)
(1) Recoil case
(2) Fan cover
(3) Fan
(4) Cylinder fins
(5) Cylinder cover
Be sure to block the air intake hole.
2. Spark arrester
The muffler is equipped with a spark arrester to
prevent red hot carbon from flying out of the
exhaust outlet. Periodically check and clean as
necessary with a wire brush after removing two
muffler cover nuts and one screw. (F32)
(1) Spark arrester
Never use a muffler if the spark arrester is missing
or defective.
3. Exhaust port
Remove the muffler, insert a screwdriver into the
vent, and wipe away any carbon buildup after
every 100 hours of use. Wipe away any carbon
buildup on the muffler exhaust vent and the
cylinder exhaust port at the same time. (F33)
(1) Muffler exhaust vent
(2) Cylinder exhaust port
NOTE
NOTE
F33
F31
F32
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