CLEAN FUEL FILTER
Tocleanfuelfilter,drainyourunitby
runningdryoffuel,removefuelcap/re-
tainerassemblyfromtank.Pulltilter
fromtankandremovefromllne.Clean
withmilddetergentand rinse. Dry thor-
oughly,reassemble. _ _.....
CARBURETOR ADJUSTMENT
WARNING: The chain will be moving
Start motor,let it runfor 3 minutes,and
proceed to.the adjustmentsection. If
engine does notstart, referto trouble-
shootingchartor call 1-800-235-5878.
if engine performanceis acceptable at
the pmsst positionsand them isno
chain movement at idle,no furtherad-
justrnantisnecessary.
ADJUSTING PROCEDURE
dudngmost.ofthle procedure. Wear Idle Speed-T
yourprated.ire equipment and observe Allow engineto idle.Adjustspeed until
all safety precautions.Duringthe low engine runs withoutchain movement or
speed mixture adjustment recheck idle stalling.
speed after each tum of the screw, The • Turnclockwiseto incmasa engine
chainmust not move at Idlespeed, speed if enginestallsor dies.
Carburetoradjustment isodticaland if • Tum counterclockwiseto decrease
done impmpedy can permanently dam-
age the engineas well as the carbure-
tor.Ifyou requirefurtherassistance or
are unsureaboutperformingthis proce-
dure, call our customer assistancehelp
line at 1-800-235-5878.
Old fue!,a dirtyairfilter,dirtyfuel filter,
or floodingmay give the impressionof
an improperlyadjusted carburetor.
Check these conditionsbefore adjust-
ingthe carburetor.
The carburetorhas been carefully setat
the factory.Adjustments maybe neces-
cary if you not[caany of the following
conditions:
• Chain moves at Idle. See "Idle Speed"
underadjustingprocedure.
• Sawwillnotidle.See "IdleSpeed"
and"LowSpeedMixture'underad-
lustingprocadum,
• Enginedies or hesitates when it
shouldaccalerate. See "Acceleration
Check"under adjusting procedure.
• Lossof cuttingpower. See "High
Speed Mixture H"under adjusting
procedure.
There are three adjus_tmantscrews on
the carburetor. They are labeled H, L,
and T. They are located in the area just
above the pdmer bulb.
CARBURETOR PRESETS
When makingadjustments, do notforce
the plasticUmitercaps beyond the
stops or damage willoccur.
ifcarburetor presets am not needed,
proceed to "Idle Speed-T."
• "rumboth mixture screws counter-
clockwiseuntilthey stop'.
,. Tu_rpthe idlespeed screw clockwise
u-_ilit stops. Now turn counterclock-
wise 4-,1/2fullturns.
speed.
No furtheradjustmentsam necessary if
chain does not moveat idlespeed and
ifperformanceis satisfactory.
Low Speed Mixture-L
Allowengineto idle.Then accelerate
the engine and note performance. If en-
gine hesitates,bogs down, orsmokes
dudng acceleration,turn mixturescrew
clockwisein 1/16-tumincrementsuntil
performanca.i_satisfactory.Repeat this
l)urocedureas neimssaryfor proper ad-
stmenL Aftercompletingadjustments,
check foraccelerationand chain move-
ment at idle. Reset ifnecessary.
High Speed Mlxture.-H
DO NOT operate engineat fullthrottle
for prolongedpedodswhile making ad-
justments. Damage to the enginecan
occur.Make a test cuL Basedon per-
formance ofthe saw while cutUng,ad-
justthe high speed mixture setting in
I/I 6-turnincrementsas follows:
• Qockwisaunl]1saw has goodpowerin
the cutwithnohesitallon.Do notadjust
by scund orspesd,butjudgebyhow
wellthe saw peflorms.,Inthe cut.
• Counterclockwiseif the saw has
speed, but dies In the cut orlacks
power inthe cut.
Aftercompletingadjustments,checkfor
accelerationand chain movement at
idle. Reset if necessary.
Acceleration Check
Ifthe enginedies or hesitatesinsteadof
ec_lerstlng,tumthelowspeedmixt.m
a_ustmant counterdockwiseuntilyou
have smoothacceismtlonwithnochain
movementat idle. Recheckand adjustas
necessaryforacceptableperformance.