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CLEAN FUEL FILTER
Toclean fuel filter,drain your unitby
runningdry offuel, remove fuel cap/re-
tainerassembly fromtank. Pullfilter
fromtank and remove from line. Clean
with milddetergent and rinse..Dry.thor-
oughly,reassemble. •
CARBURETOR ADJUSTMENT
WARNING: The chain willbe moving
duringmostof this procedure. Wear
your protectiveequipment and observe
allsafety precautions.During the low
speed mixture adjustment recheck idle
speed after each tum of the screw. The
chain mustnot move at idle speed.
Carburetor adjustment isc_ and if
done improperlycan permanently dam-
age the engine as well as the carbure-
tor. If you requirefurther assistance or
are unsureabout performing this proce-
dure, call our customer assistance help
lineat 1-800-235-5878.
Old fuel, a dirtyair filter,dirtyfuel filler,
or floodingmay give the impressionof
an improperlyadjustedcarburetor.
Check these conditionsbefore adjust-
ingthe carburetor.
The carburetor has been carefully set at
the factory.Adjustments may be neces-
sary ifyou noticeany ofthe following
conditions:
• Chain moves at idle. See "idle Speed"
underadjustingprocedure.
• Saw will notidle. See "IdleSpeed"
and "LowSpeed Mixture'under ad-
justingprocedure.
• Enginedies or hesitates when it
shouldaccelerate. Sea "Acceleration
Check"under adjusting procedure.
• Lossof cuffingpower. See "High
Speed Mixture H" under adju_ng
procedure.
There are three adjustmentscrews on
the carburetor. They are labeled H, L,
and T. They are located in the area just
above the primerbulb.
CARBURETOR PRESETS
When making adjustments,do notforce
the plastic limitercaps beyond the
stops or damage willoccur.
Ifcarburetorpresets are not needed,
proceed to "Idle Spead-T."
•Tum beth mixturescrews,counter-
.ql_o_wiea untilthey stop.
• TdrWthe idlespeed screw clockwise
untilit stops. Now tum counterclock-
wise 4-1/2fullturns.
Start motor,let it runfor 3 minutes, and
proceedtothe adjustmentsection. If
engine does notstart, refer totrouble-
shootingchartor call 1-800-235-5878.
If engine performance isacceptable at
the preset positionsand there is no
chainmovement at idle, nofurther ad-
justmentis necessary.
ADJUSTING PROCEDURE,
Idle Speed-T
Allowengineto idle. Adjustspeed until
engine runswithout chain movement or
stalling.
• Turn clockwiseto increase engine
speed if enginestalls or dies.
• Tum counterclockwiseto decrease
speed.
No furtheradjustments are necessary if
chain does notmove at idle speed and
ifperformanceis satisfactory.
Low Speed Mixtura-L
Allowengineto idle.Then accelerate
the engine and noteperformance. If en-
gine hesitates, bogs down, or smokes
duringacceleration, tum mixturescrew
clockwisein1/16-turnincrementsuntil
perforrnsncs_s_,atisfactory.Repeat this
procedure as necessary for properad-
justment.Aftercompletingadjustments,
check foraccelerationand chain move-
ment at idle. Reset if necessary.
High Speed Mixture-H
DO NOT operate engine at full throttle
for prolongedperiods while maidng ad-
justments. Damage to the engine can
occur.Make a test cut. Based onper-
formance ofthe saw while cutting,ad-
just the high speed mixturesetting in
1/16-tumincrementsas follows:
• Ckx::kwiseuntilsawhasgcodpower in
tha cutwithno _. Do notadjust
bysoundorspee butj.dgebyhow
weUthe sew performs inthe cut.
• Counterclockwiseifthe saw has
speed, butdies in the cutor lacks
power inthe cut.
Aftercompletingadjustments,checkfor
accelerationand chain movement at
idle. Resetif necessary.
Acceleration Check
Ifthe ongins dissor hedlatss instsadof
sccelarating, turnthe lowspesd mixture
adj_nt counterdcclodseuntilyou
have smoothaccela_ with nochain
movementat idle.Recheckand adjust as
necessa_ foracceptableperformance.
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