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Checking the Fuel Cap
WARNING:
A leaking fuel cap is a fire hazard and must be
replaced immediately.
The fuel cap contains a non-serviceable filter and check
valve. A clogged fuel filter causes poor engine performance.
If performance improves when the fuel cap is loosened,
the check valve may be faulty or the filter may be clogged.
Replace the fuel cap if necessary.
Cleaning the Air Filter
See Figure 22 and Figure 23.
Clean the air filter as indicated by the maintenance schedule.
Follow these steps to clean the air filter.
1. Stop the trimmer.
WARNING:
Make sure the trimmer head stops rotating when
you release the trigger. Contact with a rotating
trimmer head could cause personal injury.
2. Remove the spark plug boot.
3. Loosen the air filter cover by turning the knob counter-
clockwise.
4. Remove the air filter cover.
5. Remove the air filter.
6. Clean the air filter with warm soapy water.
7. Rinse the air filter and let it dry completely.
8. Work two drops of oil into the air filter.
9. Replace the air filter (fits only one way).
10. Replace the air filter cover.
11. Tighten the air filter cover by turning the knob clock-
wise.
12. Replace the spark plug boot.
Note: Replace the air filter (Part No. 88048) as indi-
cated by the maintenance schedule.
Maintenance
Air
Filter
Cover
Cleaning the Spark Arrester
See Figure 23.
Follow these steps to clean the spark arrester.
1. Locate the spark arrester through the hole on the muf-
fler-side engine cover.
2. Remove the spark arrester by pulling it out with needle-
nosed pliers.
3. Clean the spark arrester with a small wire brush.
4. Replace the spark arrester.
Spark
Arrester
Air Filter
Knob
Figure 22
Figure 23
23
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