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Check and replenish fuel
Check for fuel leakage
Check bolts, nuts and screws for tightness or missing
Check engine idle speed adjustment
■ Clean air filter element
Check spark plug
■ Check and clean fuel filter
■ Remove dust and dirt from air intake guard
■ Remove dust and dirt from cylinder fins
● Clean spark arrester
Tighten bolts and nuts
● Remove carbon deposits in exhaust port
Replace air filter
Replace fuel filter
Replace spark plug
● Remove carbon deposits on piston head and combustion chamber
● Remove carbon deposits in transfer ports
Replace fuel tube, fuel tank cap gasket
●: Service to be performed by an authorized BAD BOY dealer.
■: Service more frequently under dusty conditions.
NOTE:
The service intervals indicated are to be used as a guide.
Service to be performed more frequently as necessary depending on operating condition.
Use BAD BOY standard 50:1 two-stroke engine oil.
AIR FILTER
Maintenance Interval
• The air filter should be cleaned and inspected each time the Backpack Blower is used, or more often when working in
extremely dusty conditions.
• Replace after every 100 hours of operation.
Air Filter Cleaning
1. Move the choke lever to the closed (
2. Loosen the knob and remove the air cleaner cover.
3. Remove the FOAM FILTER and AIR FILTER (PAPER) from the
air cleaner body.
4. Clean the filter.
• FOAM FILTER
Clean FOAM FILTER by gently tapping or cleaning with a
suitable solvent the filter. Then completely dry before using
again.
• AIR FILTER (PAPER)
Clean AIR FILTER (PAPER) by gently tapping. Replace filter
if it is damaged or very dirty.
5. Reassemble components in reverse order.
6. Reinstall the air cleaner cover and tighten the knob.
Maintenance
) position.
English-11
Every
Daily
25 hours
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It is recommended to replace every 3 years
AIR CLEANER COVER
KNOB
FOAM FILTER
Every
Every
50 hours
100 hours
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AIR FILTER (PAPER)
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