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21
MAINTENANCE
CLEANING THE EXHAUST PORT AND
MUFFLER
NOTE: Depending on the type of fuel used, the type and
amount of oil used, and/or your operating conditions, the
exhaust port, muffler, and/or spark arrestor screen may
become blocked with carbon deposits. If you notice a
power loss with your gas powered tool, you may need to
remove these deposits to restore performance. We highly
recommend that only qualified service technicians perform
this service.
SPARK ARRESTOR
The spark arrestor must be cleaned or replaced every 25
hours or yearly to ensure proper performance of your prod-
uct. Spark arrestors may be in different locations depending
on the model purchased. Please contact your nearest service
dealer for the location of the spark arrestor for your model.
REPLACING AND CLEANING AIR FILTER
See Figures 29 - 30.
For proper performance and long life, keep air filter clean.
Remove the air filter cover by pushing down on the latch
with your thumb while gently pulling on the cover.
Remove the air filter and clean it in warm soapy water.
Rinse and let dry completely.
Reinstall the air filter.
Replace the air filter cover by inserting the tabs on the
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
NOTE: For best performance, replace annually.
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 a check
valve. A clogged fuel filter will cause poor engine perfor
-
mance. If performance improves when the fuel cap is loos-
ened, check valve may be faulty or filter clogged. Replace
fuel cap if required.
SPARK PLUG REPLACEMENT
This engine uses a Champion RCJ-6Y or NGK BPMR7A
spark plug with 0,63 mm (.025 in.) electrode gap. Use an
exact replacement and replace annually.
Fig. 29
AIR FILTER COVER
AIR FILTER
Fig. 30
AIR FILTER
BASE
STORAGE (1 MONTH OR LONGER)
Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.
Clean all foreign material from the trimmer. Store idle unit
indoors in a dry, well-ventilated area that is inaccessible
to children. Keep away from corrosive agents such as
garden chemicals and de-icing salts.
Abide by all ISO and local regulations for the safe storage
and handling of gasoline. Excess fuel should be used up
in other 2-cycle engine powered equipment.
AIR FILTER
COVER
LATCH
PULL COVER
TO OPEN