Muffler And Spark Arresting Screen; Replace Spark Plug; Line Replacement; Carburetor Adjustment - Weed Eater SST25 Instruction Manual

Button
Air FiIter
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Air FiRer Cover
MUFFLER AND SPARK ARREST-
ING SCREEN
,_WARNING:
The muffler on this prod-
uct contains chemicals known to the State of
CalTIornia to cause cancel
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 (06 mm) Igni-
tion timing is fixed and nonadjustabIe.
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
(f9 ram) socket wrench.
g Reinstall the spark plug boot.
LINE REPLACEMENT
1 Remove spool by firmly pulling on tap
button.
2. Clean entire surface of hub and spool
3. Replace with a pre-wound spool or cut two
lengths of 12-1/2 feet of 0.080" (2 ram) di-
ameter WEED EATER brand line
_iWARNING: Never use wire, rope,
string, etc., which can break off and become a
dangerous missile.
g. Insert ends of the lines about 1/2 inch (f
cm) into the small holes on the inside of
spool
spoo,
i/ o'es
Line exit holes Line in Notch
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Une in Notch
5. Wind the line evenly and tightly onto the
spool Wind in the direction of the arrows
found on the spook
6. Push the lines into the notches, leaving 3
to 5 inches (7 - 12 cm) unwound
7. Insert the lines into the the exit holes in
the hub as shown in the illustration
8. Align the notches with the line exit holes.
9. Push spool into hub until it snaps into
place.
10. Pullthe lines extending outside of the hub
to release the lines from the notches
REPLACING THE CUTTING HEAD
1. Align hole in the dust cup with the hote in the
side of the gearbox by rotating the dust cup.
2 Insert a small screwdriver into aligned
holes This will keep the shaft from turning
while removing and installing trimmer head.
3 While holding the screwdriver in position,
remove trimmer head by turning clockwise.
g Thread replacement trimmer head onto the
shaft by turning counterclockwise Tighten
until secure.
5 Remove the screwdriver.
CARBURETOR ADJUSTMENT
_IWARNING: Keep others away when
making idle speed adjustments The trimmer
head wilI be spinning during this procedure.
Wear your protective equipment and observe
nil safety precautions.
The carburetor has been carefully set at the
factory. Adjustments may be necessary if you
notice any of the following conditions:
• 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 Hoid
the unit by hand while running and making ad-
justments. Keep all parts of your body away
from the cutting attachment and muffler