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• Insert one end of line into centercavity
of empty spool.
Ensure line will feed
into spool in the direction
shown on
the spool (counterclockwise).
• Continue feeding line into spool, leav-
ing 4 - 6 inches (10 - 15 cm) unwound
from center of spool.
INSTALLING
SPOOL WITH LINE
• Install replacement
spool.
• Thread line through line guide ring.
Line through
guide ring
• Loss of cutting power. See MIXTURE
ADJUSTMENT under adjusting
procedure.
There are two adjustment
screws on
the carburetor.
They are located in the
area just above the primer bulb.
Mixture
Screw
(with
Limiter Cap)
Idle
Speed
Screw
Slot
Replacement
Spool
• Rest guide ring on spool and place
line through slot. Allow line to extend
4 - 6 inches (10 - 15 cm) from center
of spool.
• Ensure
line
remains
in slot
while
screwing
cap on to the shaft.
Only
tighten cap hand tight!
CARBURETOR
ADJUSTMENT
_WARNING:
The trimmer head
will be spinning
during most of this
procedure.
Wear your protective
equipment and observe all safety pre-
cautions.
After making mixture adjust-
ments, recheck idle speed.
Carburetor
adjustment
is critical and if
done improperly
can permanently
damage
the engine as well as the car-
buretor. If you require further assis-
tance or are unsure about performing
this procedure,
call 1-800-235-5878.
Old fuel, a dirty air filter, a dirty fuel fil-
ter, or flooding
may give the impres-
sion of an improperly
adjusted
carbu-
retor. Check these conditions
before
adjusting
the carburetor.
The carburetor
has been carefully set
at the factory. Adjustments
may be
necessary
if you notice any of the fol-
lowing conditions:
• Engine will not idle. See IDLE SPEED
under adjusting
procedure.
• Engine dies or hesitates
instead of
accelerating.
See ACCELERATION
CHECK under adjusting
procedure.
Air Filter
Cover
CARBURETOR
PRESETS
When making carburetor
preset ad-
justments,
do not force plastic limiter
caps beyond stops or damage
will oc-
cur.
If carburetor
presets are not needed,
proceed to ADJUSTING PROCEDURE,
IDLE SPEED.
To adjust presets:
• Turn mixture screw counterclock-
wise until it stops.
• Turn the idle speed screw clockwise
until it stops. Now turn counterclock-
wise 4-1/2 turns.
• Start engine, cut grass for 3
minutes,
and proceed to the
adjustment
section.
If engine does
not start,
refer to TROUBLESHOOTING CHART
or call 1-800-235-5878.
• If engine performance
is acceptable
at the preset positions,
no further
adjustment
is necessary.
ADJUSTING
PROCEDURE
Idle Speed
Allow engine to idle. Adjust speed until
engine runs without stalling.
• Turn clockwise
to increase
engine
speed if engine stalls or dies.
• Turn counterclockwise
to decrease
speed.
No further adjustments
are necessary
if performance
is satisfactory.
Mixture
Adjustment
"H"
DO NOT operate engine at full throttle
for prolonged
periods while making
adjustments.
Damage
to the engine
can occur. Ensure line is fully ex-
tended.
10
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