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4. Turnadjustingscrewonbarcoun-
terclockwisetomovethetension-
ingrackasfarasitwillgotoward
thefrontofthebar.
TensioningRL_ac_
5. Slideguidebarbehindclutchdrum
untilguidebarstopsagainstclutch
drumsprocket.
6. Removetheoldchain.
7. Carefullyremovenewchainfrom
package.Holdchainwiththedrive
linksasshown.
Cutters DepthGauge
DriveLinks
8. Placechainoverandbehind
clutch,fittingthedrivelinksinthe
clutchdrumsprocket.
9. Fitbottomofdrivelinksbetween
theteethinthesprocketinthe
noseoftheguidebar.
10.Fitchaindrivelinksintobargroove.
11.Pullguidebarforwarduntilchainis
snuginguidebargroove.Ensure
alldrivelinksareinthebargroove.
12.Installchainbrake.
13.Installchainbrakenutsandfinger
tightenonly.Donottightenanyfur-
theratthispoint.Proceedto
CHAINADJUSTMENT.
CHAIN ADJUSTMENT
See CHAIN TENSION in MAINTENANCE
section.
CARBURETOR ADJUSTMENT
_IWARNING: The chain will be
moving during most of this procedure.
Wear your protective equipment and ob-
serve all safety precautions. During the
low speed mixture adjustment recheck
idle speed after each turn of the 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 1-800-235-5878.
Old fuel, a dirty air filter, dirty fuel filter, or
flooding may give the impression of an
improperly adjusted carburetor. Check
these conditions before adjusting 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-T under adjusting procedure.
• Saw will not idle. See IDLE SPEED-T
and LOW SPEED MIXTURE-L under
adjusting procedure.
• Engine dies or hesitates when it
should accelerate. See ACCELERA-
TION 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 T. They are located in the area just
above the primer bulb.
ADJUSTING PROCEDURE
CAUTION: Do not force plastic limiter
caps on screws beyond the built-in
stops or damage will occur.
Initial Settings
1. Turn both mixture screws (L and H)
counterclockwise until they stop.
2. Turn the idle speed screw (T)
clockwise until it stops. Then turn it
counterclockwise 4 and 1/2 turns.
3. Start engine and let it run for 3 min-
utes, then proceed to adjust
screws according to the instruc-
tions below. If engine performance
at initial settings is acceptable, no
further adjustments are necessary.
If engine does not start, refer to the
TROUBLESHOOTING TABLE.
If still unable to remedy situation,
call 1-800-235-5878.
Idle Speed-T
Allow engine to idle. If the chain
moves, idle is too fast. If the engine
stalls, idle is too slow. Adjust speed
until engine runs without chain move-
ment (idle too fast) or stalling (idle too
slow).
• Turn idle screw (T) clockwise to in-
crease engine speed.
• Turn idle screw (T) counterclockwise
to decrease engine speed,
17
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