they need to be maintained more frequently.
1. Loosen the cover screw and remove the air filter
maintenance cover.
2. Unscrew the bolt on the air filter cover and remove the cover
of the air filter.
3. Remove the foam filter element.
4. Wash in liquid detergent and warm water.
5. Squeeze thoroughly dry in a clean cloth(DO NOT TWIST).
6. Saturate in clean engine oil.
7. Squeeze in a clean absorbent cloth to remove all excess oil.
8. Assemble the filter element onto the filter unit.
9. Assemble the filter fix clamp.
10. Reinstall the air filter cover and the air filter maintenance cover.
Spark Plug Maintenance
Spark plug gap : 0.6mm-0.7mm(0.024-0.028 in). Spark plug tighten torque: 12.5N.m
The spark plug is important for proper engine operation. A good spark plug should be intact, free of
deposits, and properly gapped. Refer to Recommended Maintenance Schedule. To inspect the spark plug:
1. Remove the spark plug maintenance cover, and take off the spark plug cap.
2. Using the spark plug spanner to loose and take off the spark plug.
3. Check the spark plug, if the spark plug insulator cracked or chipped, change a new one. Clean any dirt
from the spark plug cap and spark plug base with wire brush if reuse it.
4. Measure the spark plug gap with a standard gauge. The normal value should be:0.6-0.7mm (0.024-
0.028in), adjust if necessary.
5. Carefully thread the spark plug into the engine by hand.
6. After the spark plug is seated, use spark plug wrench to tighten the plug.
7. Attach the spark cap to the plug and connect the spark plug wire to the plug.
CAUTION: Only use recommended spark plug or equivalent. Do not use spark plugs that have
improper heat range.
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