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8
MUFFLER AND SPARK ARREST -
ING SCREEN
WARNING: The m uffler on th is prod-
uct contains chemicals known to the State of
California to cause cancer .
As your unitis used, carbondeposits buildup
on the m uffler and spark arresting screen.
For normal homeow ner use, however, the
mufflerand spark arresting screen will notre-
quire any service. After 50 hours of use, we
recommend that your muffler be serviced or
replaced by your authorized service dealer.
REPLACE SPARK PLUG
Replace the spark plug each year to ensure
the engine starts easier and runs better. Set
spark plug gap at 0.025 inch (0.6 mm). Igni-
tion timing is fixed and nonadjustable.
1. Twist, then pull of f spark plug boot.
2. Remove spark plug from cylinder and dis-
card .
3. Replace with Champion RCJ-6Y spark
plug and t ighten securely with a 3 /4 inch
(19 mm) socket wrench.
4. Reinstall the spark plug boot.
SERVICE AND ADJUSTMENTS
LINE REPLACEMENT
1. Remove spool by firmly pulling on tap
button.
2. Clean entire surface of hub and spool.
3. Replace with apre-wound spool, or cut two
lengths of
12-1/2 feet of 0.080″ (2 mm) di-
ameter WEED EATER brand line.
WARNING: Never use wire, rope,
string,etc.,whichcanbreak offandbecomea
dangerous missile.
4. I nsert ends of the lines about 1/2 inch (1
cm) into the small holes on the inside of
spool.
Small
Holes
Spool
Hub
Line in Notch
Line in Notch
Line exit holes
5. W ind the line evenly and tightly onto the
spool. Wind in the direction of thearrows
found on the spool.
6. P ushthelines into thenotches, leaving 3
to 5 inches (7 -- 12 cm) unwound.
7. I nsert the lines into the the exit holes in
the hub as shown in the illustration.
8. A lign thenotches with the line exit holes.
9. P ush spool into hub until it snaps into
place.
10. Pullthelinesextendingoutsideofthehub
to release t he lines from the notches.
CARBURETOR ADJUSTMENT
WARNING: Keep others away when
making idlespeedadjustments. The trimmer
head will be spinning during this procedure.
Wearyour protectiveequipmentand observe
all safety precautions.
The carburetor has been carefully set at the
factory .Adjustments maybenecessary ifyou
notice any of the following conditions:
S Engine will not idl e when the throttle i s re-
leased.
Make adjustments with the unit supported so
the cutting attachment is off the ground and
will not make contact with any object. Hold
theunitby handwhilerunningandmakingad-
justments. Keep all parts of your body away
from the cutting attachment an d muf fler.
Idle Speed Adjustment
Allowengine toidle.Adjustspeeduntilengine
runs without stalling (idle speed too slow).
S Turn idle speed screw clockwise to in-
creaseenginespeedifenginestalls ordies.
S Turn idle speed screw counterclockwise to
decrease engine speed.
Air Filter Cover
Idle Speed Screw
Ifyourequirefurtherassistanceorareunsure
about performing this procedure, contact an
authorized service dealer or call
1--800--554--6723.