CLEAN FUEL FILTER
To clean fuel filter,drainyour unit by
running dryof fuel, remove fuel cap/re-
tainer assembly from tank. Pullfilter
from tank and remove from line. Clean
with milddetergent and rinse. Dry thor-
oughly, reassemble.
CARBURETOR ADJUSTMENT
WARNING: The chain willbe moving
during most ofthis procedure. Wear
your protective equipment and observe
all safety precautions. During the low
speed mixture adjustment recheck idle
speed after each turn ofthe screw. The
chain must not move at idle speed.
Carburetor adjustment is critical and if
done improperly can permanently dam-
age the engine as well as the carbure-
tor. If you require further assistance or
are unsure about performing this proce-
dure, call our customer assistance help
line at t-800-235-5878.
Old fuel, a dirty air filter, dirty fuel filter,
or flooding may give the impression of
an improperly adjusted carburetor.
Check these conditions before adjust-
ing the carburetor.
The carburetor has been carefully set at
the factory. Adjustments may be neces-
sary if you notice any of the following
conditions:
• Chain moves at idle. See "Idle Speed"
under adjusting procedure.
• Saw will not idle. See "Idle Speed"
and =Low Speed Mixture"under ad-
justing procedure.
• Engine dies or hesitates when it
should accelerate. See =Acceleration
Check" under adjusting procedure.
• Loss of cutting power. See "High
Speed Mixture H" under adjusting
procedure.
There are three adjustment screws on
the carburetor. They are labeled H, L,
and 1".They are IQcated in the'area just
above the primer bulb.
CARBURETOR PRESET_
When making adjustments, do not force
the plastic limitor caps beyond the
stops or damage will occur.
if carburetor presets are not needed,
proceed to "ldte Speed-T."
• "rum both mixture screws counter-
clockwise until they stop.
• Turn the idle speed screw clockwise
until it stops. Now turn counterclock-
wise 4-I/2 full turns.
Start motor, let it run for 3 minutes, and
proceed to the adjustment section. If
engine does not start, refer to treuble-
shootingchart orcall 1-800-235-5878.
If engine performance is acceptable at
the preset positionsand there is no
chain movement at idle, nofurther ad-
justment is necessary.
ADJUSTING PROCEDURE
Idle Speed-T
Allow engine to idle. Adjust speed until
engine runswithout chain movement or
stalling. ,
• Turn clockwiseto increase engine
speed ifengine stalls or dies.
• Turn counterclockwise to decrease
speed.
No further adjustments are necessary if
chain does not move at idle speed and
if performance is satisfactory.
Low Speed Mixture-L
Allow engine to idle. Then accelerate
the engine and note performance. Ifen-
gine hesitates, bogs down, or smokes
duringacceleration, turn mixture screw
clockwise in lt16-tum increments until
performance is satisfactory. Repeat this
procedure as necessary for proper ad-
justment. After completing adjustments,
check for acceleration and chain move-
ment at idle. Reset if necessary.
High Speed Mixture-H
DO NOT operate engine at full throttle
for prolongedped0ds while making ad-
justments. Damage to the engine can
occur. Make a test cut, Based on per-
formance ofthe saw while cutting, ad-
just the highSpeed mixture setting in
1/16-turnincrements as follows:
• Clockwise untilsaw has good power in
the cut with no hesitation.Do not adjust
by soundorspeed,butjudgeby how
we_lthe saw performs in the cut.
• Counterclockwise if the saw has
speed, but dies in the cut or lacks
power in the cut.
After completing adjustments, check for
acceleration and chain movement at
idle. Reset if necessary.
Acceleration Check
if the engine d_esor hesitatesinstead of
accelerating,turnthe low speed mixture
adjustment counterclockwiseuntilyou
have smooth accelerationwith no chain
movementat idle. Recheck and adjust as
necessaryfor acceptable performance.