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AIR FILTER
A dirty air filter will restrict air flow to the carburetor and cause poor engine performance.
Inspect the air filter each time the engine is operated. You will need to clean the air filter more
frequently if you operate the engine in very dusty areas.
Note: I
Operating the engine without an air filter, or with a damaged air filter, will allow dirt
to enter the engine, causing rapid engine wear. This type of damage is not covered.
AIR FILTER INSPECTION AND CLEANING
CAUTION! A
The air filter must be serviced (cleaned) after 25 hours normal working. Service
more frequently when operating the machine in extremely dusty areas.
Shut off the engine before performing any service on the machine. Wait till all moving
parts are completely stopped and disconnect the spark plug.
1. Release the air filter cover (Fig. 24 A)
2. Remove the air filter cover. Be careful to prevent dirt and debris from falling into the air
filter base.
3. Remove the air filter from the air filter base (Fig. 25).
4. Inspect the air filter elements. Clean dirty elements.
5. Wash the cover and filter element in warm soapy water, rinse, and allow to dry thoroughly.
Or clean in non-flammable solvent and allow to dry. DO NOT USE GASOLINE!
6. Dip the filter element in clean engine oil, then squeeze out all excess oil. The engine will
smoke if too much oil is left in the foam.
7. Fill the air cleaner case to the OIL LEVEL mark with the same oil that is recommended for
the engine (Fig. 24B).
8. Reassemble the air cleaner.
9. Close the cover and secure it.
Replace filter if frayed, torn, damaged or unable to be cleaned.
GREASE FOR THE CHAIN DRIVE
The housing of chain drive is filled with grease already at the factory.
SPARK PLUG
For best results, replace the spark plug every 100 hours of use. Use only the recommended
spark plug which is the correct heat range for normal engine operating temperatures. To find
actual types of recommended spark plugs please contact an authorized service center.
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