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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
For unit to operate properly , the cutting line
should be replaced when line becomes worn
tolessthan3inches inlengthfromtheedgeof
each side of the cutting head.
WARNING: Use only 0.095 inch (2.4
mm) diameter WEED EATER b ran d cu t length
line. Never use wire, rope, string, etc., which
can break off and become a dangerous mis-
sile.
1. Re move and discard worn line before
installing new line.
2. Clean entire surface of cutting head.
3. I nsertendsoflineintothetwoguideholes
on front of cutting head.
Guide
Hole
Guide
Hole
4. Continue to feed line through the guide
holes until the line is fully extended
through t he side exit holes.
Side Exit Hole
Side Exit
Hole
5. P ullendsoflineuntillineistight.Correctly
installed line will be the same length on
both ends.
REPLACING THE CUTTING HEAD
1. Alignholeinthe dustcupwith thehole inthe
side ofthe gearboxby rotatingthe dustcup.
2. I nse rt a smal l screwdri ver int o alig n e d
holes. This will keep the shaft from turning
while removing andinstalling trimmer head.
Screwdriver
3. While holding the screwdriver in position,
remove trimmer head by turning clockwise
(looking from bottom of unit).
4. Thread replacement trimmer head onto the
shaft by turning counterclockwise. T ighten
until secure.
5. Remove the screwdriver.
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.