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14
AIR FILTER
CAUTION
:
Do not clean filter in gasoline
or other flammable solvent to avoid creating
a fire hazard or producing harmful evapora-
tive emissions.
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Alwaysclean afterevery
5 hours of operation.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Clean theairfilterusinghotsoapywater.
Rinse with clean cool water. Air dry
completely before reinstalling.
5. Lightly oil air filter beforeinstalling to im-
prove the efficiency of air filter. Use
2--cycle engine oil ormotoroil (SAE 30).
Squeeze excess oil from filter.
6. Reinstall air filter.
7. Reinstall cylinder cover and 3 screws.
TIghten securely.
Air Filter
Cylinder Cover
Screws
Cylinder
Cover
INSPECT MUFFLER AND SPARK
ARRESTINGSCREEN
W ARNING:
The muffler on this
product contains chemicals known to the
State of California to cause cancer.
As theunit is used, carbon deposits build up
on the muf fler and spark arresting screen,
andmust be removedtoavoidcreatinga fire
hazard or affecting engine performance.
Replace thespark arrestingscreen ifbreaks
occur.
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
Muffler
Gasket
Muffler
Bolts
Muffler
Locknut
Outlet
Guide
Bolt Cover
Backplate
1. Loosenandremovethelocknutfrom the
bolt cover .
2. Remove the bolt cover .
3. Loosen and remove the 2 muffler bolts.
Remove themuffler,muffler gasket,out-
let guide and backplate. Notice the ori-
entationofthesepartsforreassembling.
4. Locate t he 2 outlet cover screws on the
muffler. Loosen and remove both
screws.
5. Remove the outlet cover.
BACK VIEW OF
MUFFLER
Muffler
Spark Arresting
Screen
Outlet Cover
Screws
6. Remove spark arresting screen.
7. Clean the spark arresting screen with a
wire b rush. Re place screen if any wires
a r eb rokenor screen i sblo cked af ter c lea-
ning.
8. Reinstall spark arresting screen.
9. Reinstall outletcover and2 screws. En-
sure outlet cover and
both
screws are
reinstalledcorrectly (seeillustrations)to
prevent damage to the saw. The ex-
haust outlet must face the chain brake
(bar side) of the saw.
Exhaust Outlet must face chain
brake (bar side) of chain saw
Outlet Cover
Exhaust
Outlet
10. Inspect themuffler gasket andreplaceif
damaged.
11. Reinstall backplate,outlet guide,muffler
gasket, and muffler using muffler bolts.
Tighten until secure.
12. Reinstall boltcover andl ocknut. Tighten
securely.
CARBURETOR ADJUSTMENT
WARNING:
The chain will be mov-
ing during mostof this procedure.Wearyour
protective equipment and observe all safety
precautions.Thechain mustnotmoveatidle
speed.
The carburetor has been carefully set at the
factory. Adjustments may be necessary if
you notice any of the following conditions:
S
Chain moves at idle. See IDLE SPEED--T
adjusting procedure.
S
Saw will not idle. SeeIDLESPEED--T ad-
justing procedure.
Idle Speed--T
Allow engine to idle. If the chain moves, idle
is toofast. Iftheenginestalls, idle istoos low.
Adjust speed until engine runs without chain
movement (idle too fast) or stalling (idle too
slow). Theidle speedscrew is located inthe
area above the primer bulb and is labeled T.