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MAINTENANCE
Spark Arrestor Screen
Carbon deposits in muffler will cause drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
1.
Remove air cleaner cover and
remove spark plug lead.
2.
Remove spark arrestor cover
(C) and screen (B) from muffler
(A) body.
3.
Clean carbon deposits from
muffler components.
4.
Replace screen if it is cracked,
or has holes burned through.
5.
Assemble components in
reverse order.
Note: When cleaning carbon deposit, be careful not to damage the
catalytic element inside muffler.
Exhaust Port Cleaning
Level 2.
Parts Required: As needed: Muffler gasket
1.
Remove cylinder cover and
remove spark plug lead.
2.
Place piston at top dead center.
3.
Remove muffler. Check parts
for wear or damage, and
replace if necessary.
Never use a metal tool to scrape carbon from the exhaust port. Do
not scratch the cylinder or piston when cleaning the exhaust port. Do
not allow carbon particles to enter the cylinder.
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A
B
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305S
C
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