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Page 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.
n Remove the air filter cover by turning the knob
counterclockwise while gently pulling on the cover.
n Remove the air filter and clean it in warm soapy water.
Rinse and let dry completely.
NOTE: For best performance, replace annually.
n Install the air filter. Align and install the air filter cover on
the air filter base. Secure the air filter cover by turning
the knob clockwise.
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
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
KNOB
AIR FILTER COVER
AIR FILTER
COVER
AIR FILTER
Fig. 30
AIR FILTER
BASE
STORAGE (1 MONTH OR LONGER)
n Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.
n Clean all foreign material from the trimmer. Store it in a
well-ventilated place that is inaccessible to children. Keep
away from corrosive agents such as garden chemicals
and de-icing salts.
n 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.