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SPARK PLUG
•
Check periodically.
IMPORTANT
Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise
severe engine damage may occur.
1. Remove air cleaner cover.
2. Remove spark plug lead and spark plug.
3. Gap = 0.65 mm (0.026 in)
4. Replace if electrode is worn, or if the insulator is fouled by oil or other
deposits
5. Torque = 150 – 170 kg/cm (130 – 150 in. lb.)
IMPORTANT
Do not over-torque
COOLING SYSTEM CLEANING
NOTE
See "Guide Bar and Saw Chain-Install/Remove Instructions for
sprocket guard removal/replacement instructions.
Muffler Side
1. Remove air filter cover and remove spark plug lead.
2. Remove two guide bar nuts and remove sprocket guard.
3. Remove three muffler cover screws and remove muffler cover.
4. Using a stiff bristle cleaning brush (do not use a metal brush), remove
debris from cylinder fins in muffler area.
5. Assemble components in reverse order
Starter Side
1. Remove air filter cover and remove spark plug lead.
2. Remove plastic plug in side handle mount (D), and remove side
handle mounting screw.
3. Remove four starter cover screws and remove starter cover.
4. Using a stiff bristle cleaning brush (do not use a metal brush), remove
debris from flywheel and ignition coil area.
5. Assemble components in reverse order.
MUFFLER SPARK ARRESTOR
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
1. Remove air filter cover and remove spark plug lead.
2. Remove two guide bar nuts and remove sprocket guard.
3. Remove three muffler cover screws and remove muffler cover.
4. Remove spark arrestor screen cover, gaskets, and screen from
muffler body.
5. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposit, be careful not to damage the catalytic
element inside muffler.
6. Replace screen if it is cracked, plugged, or has holes burned
through.
7. Assemble components in reverse order.
20
D
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