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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. Always clean afterevery
5 hours of operation.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Clean theair filter usinghot soapywater.
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 or motoroil (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
ARRESTING SCREEN
W ARNING:
The muf fler on this
product contains chemicals known to the
State of California to cause cancer.
As the unit is used, carbon deposits build up
on the muf fler and spark arresting screen,
andmust beremovedto avoid creatinga 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. Loosenandremove thelocknut fromthe
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-
entationof theseparts forreassembling.
4. Locate the 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 a rresting screen with a
wire brush. Replace screen if any wires
a r ebrokenor scre en is b locked after clea-
ning.
8. Reinstall spark arresting screen.
9. Reinstall outletcover and2 s crews. 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 the m uffler gasket and r eplace if
damaged.
11. Reinstall backplate, outlet gui de,muf fler
gasket, and muf fler using muffler bolts.
Tighten until secure.
12. Reinstall boltcover andlocknut. Tighten
securely.
CARBURETOR ADJUSTMENT
WARNING:
The chain will be mov-
ing during most of this procedure. Wear your
protective equipment and observe all safety
precautions.Thechain must notmoveatidle
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 notidle. SeeIDLE SPEED--T ad-
justing procedure.
Idle Speed--T
Allow engine to idle. If the chain moves, idle
is toof ast. Iftheenginestalls, idle i s t oos low.
Adjust speed until engine runs without chain
movement (idle too fast) or stalling ( idle too
slow). Theidle speed screw is located inthe
area above the primer bulb and is labeled T.