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Remove air lter cover and remove spark plug lead. 1.
Remove two guide bar nuts and remove sprocket guard. 2.
Remove three mufer cover screws and remove mufer cover. 3.
Remove spark arrestor screen cover, gaskets, and screen from 4.
mufer body.
Clean carbon deposits from mufer components.
5.
Replace screen if it is cracked, plugged, or has holes burned through. 6.
IMPORTANT :
The cylinder exhaust port must be inspected and
cleaned of excess carbon every 3 months or 90 hours of operation in
order to maintain this engine within the emissions durability period.
Shindaiwa strongly recommends that you return your unit to your Shin-
daiwa dealer for this important maintenance service.
IMPORTANT: Carbon deposits in mufer will cause a drop in engine
output and overheating. Spark arrester screen must be checked
periodically.
NOTE: When cleaning carbon deposit, be careful not to damage the
catalytic element inside mufer.
Assemble components in reverse order. 7.
MUFFLER SPARK ARRESTER
CYLINDER EXHAUST PORT
Exhaust Port Cleaning - Level 2
Tools required: Wood or plastic scraper, cross-head (Philips) screw-
driver, 4 and 5 mm hex wrench
Parts Required: (as needed) mufer gasket
Remove spark plug lead from spark plug, and remove mufer
1.
cover (3 screws).
Place piston at top dead center. Remove mufer ( A) and mufer
2.
gasket (B ).
Use a wood or plastic scraping tool (C) to clean deposits from cyl-
3.
inder exhaust port (D).
IMPORTANT
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.
Inspect mufer gasket, and replace if damaged.4.
Install mufer gasket and mufer.5.
Install mufer cover and attach spark plug lead.6.
Replace the three mufer cover screws securely. If a torque 7.
wrench is available, torque the mufer cover screws to 10 - 20 kgf-
cm (1 - 2 N-m).
Maintenance, continued
A
B
D
C
C
D