10
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). Ig ni-
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 of 0. 065″ (1.65 m m) dia-
meter WEED EA TER b ra nd line.
WARNING: Never use wire, rope,
string,etc.,whichcanbreakoffandbecomea
dangerous missile.
4. Insert one end of the line about 1/2 inch (1
cm) into the small hole on the inside of
spool.
Small Hole
Spool
Hub
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 untilitsnaps intoplace.
10. Pull the line extending outside of the hub to
release it f rom the notch.
REPLACING THE TRIMMER HEAD
1. Ho ld the dust cup with a wrench to keep
theshaftfromturningwhileremoving 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 protectiveequipmentandobserve
all safety precautions.
The carburetor has been carefully set at the
factory .Adjustments m aybenecessary 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 handwhilerunninga ndmakingad-
justments. Keep all parts of your body away
from the cutting attachment an d muf fler.
To adjust idle speed:
Allowenginetoidle.Adjustspeeduntilengine
runs without stalling (idle speed too slow).
S Turn idle speed screw clockwise to in-
creaseenginespeedif enginestalls 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.
