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10
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 o f 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 but-
ton.
2. Clean entire surface of hub and spool.
3. Replace with p re--wound spool, or cut a
length of 18 feet o f 0.065 inch (1.65 mm)
diameter WEED EA TER brand line.
WARNING: Never use wire, rope,
string,etc.,whichcanbreak offandbecomea
dangerous missile.
4. Insert one end of the line about 1/2 inch (1
cm) into the small hole on the inside of
spool.
Hub
Small Hole
Spool
Line exit hole
Line in Notch
5. Wind the line evenly a nd tightly onto the
spool. Wind in the direction of t he arrow
found on the spool.
6. Pushthelineinto thenotches, leaving3 to5
inches (7 -- 12 cm) unwound.
7. Insert the lines into the exit holes in the hub
as shown in the illustration.
8. Align the notch with the line e xit hole.
9. Push spool intohub until itsnaps intoplace.
10. Pull the line extending outside of the hub to
release it f rom the notch.
REPLACING T HE TRIMMER HEAD
1. Hold thedustcup witha wrenchto keepthe
shaft from turning while removing and
installing trimmer head.
Dust Cup
2. Remove trimmer head by turning counter-
clockwise (looking from bottom of unit).
3. Thread replacement trimmer head onto the
shaft by turning clockwise. O nly tig hten
hand tight!
CARBURETOR IDLE SPEED
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.
To adjust idle speed:
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.