10
MUFFLER AND SPARK ARREST-
ING SCREEN
WARNING:
The muffler on this prod-
uct contains chemicals known to the State of
California to cause cancer.
As your unit is used, carbon deposits build up
on the muffler and spark arresting screen.
For normal homeowner use, however, the
muffler and spark arresting screen will not re-
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.
NOTE:
This spark ignition system complies
with the Canadian standard ICES--002.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder and dis-
card.
3. Replace with Champion RCJ-6Y spark
plug and tighten 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 pre--wound spool, or cut a
length of 18 feet of 0.065 inch (1.65 mm)
diameter WEED EATER brand line.
WARNING:
Never use wire, rope,
string, etc., which can break off and become a
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 and tightly onto the
spool. Wind in the direction of the arrow
found on the spool.
6. Push the line into the notches, leaving 3 to 5
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 exit hole.
9. Push spool into hub until it snaps into place.
10. Pull the line extending outside of the hub to
release it from the notch.
REPLACING THE TRIMMER HEAD
1. Hold the dust cup with a wrench to keep the
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.
Only tighten
hand tight!
CARBURETOR IDLE SPEED
ADJUSTMENT
WARNING:
Keep others away when
making idle speed adjustments. The trimmer
head will be spinning during this procedure.
Wear your protective equipment and observe
all safety precautions.
The carburetor has been carefully set at the
factory. Adjustments may be necessary if you
notice any of the following conditions:
S
Engine will not idle when the throttle is 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
the unit by hand while running and making ad-
justments. Keep all parts of your body away
from the cutting attachment and muffler.
To adjust idle speed:
Allow engine to idle. Adjust speed until engine
runs without stalling (idle speed too slow).
S
Turn idle speed screw clockwise to in-
crease engine speed if engine stalls or dies.
S
Turn idle speed screw counterclockwise to
decrease engine speed.
