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Muffler
Gasket
Muffler
Bolts
Muffler
L
ocknut
Steel
Backplate
Bolt Cover
Aluminum
Backplate
1. Loosen andremove the3 cylinder cover
screws. Remove the cylinder cover .
2. Pull off the spark plug boot.
3. Loosen andremovethelocknutfromthe
bolt cover. Remove the bolt cover.
4. Loosen and remove the 2 muffler bolts.
Remove the muf fler, muf fler gasket and
backplates. N otice the orien tation of
these parts for reassembling.
5. Locate the 2 outlet cover screws on the
muffler. Loosen and remove both
screws. Remove the outlet cover and
spark arresting screen.
Outlet Cover
Spark Arresting
Screen
Screws
Muffler
B
A
C
K
VIEW OF MUFF
L
ER
6. Clean the spark arresting screen with a
wire brush. Replace screen if any wires
are broken or screen is blocked after
cleaning.
7. Reinstall spark arresting screen.
8. Reinstalloutlet cover and2screws. En-
sure outlet cover and both screws are
reinstalled correctly to prevent damage
to the saw (see illustrations). The ex-
haust outlets must face the chain brake
(bar side) of the saw.
Outlet Cover
Exhaust Outlets
Exhaust Outlets must face
chain brake (bar side) of chain saw
9. Inspect themuffler gasket andreplace if
damaged.
10. Reinstall backplates, muf fler gasketand
muffler using muffler bolts. Tightenuntil
secure.
11. Reinstall bolt cover and locknut.
12. Reinstall the spark plug boot.
13. Reinstall the cylinder cover and 3
screws. Tighten securely.
CARBURETOR AD J UST MEN T S
WARNING: The chain will bemov-
ingduring mostof thisprocedure. Wearyour
protective equipmentand observe all safety
precautions.Thechainmustnotmoveatidle
speed.
The carburetor has beencarefully set at the
factory . Adjustments may be necessary if
you notice any of the following conditions:
S Chain moves at idle.See IDLESPEED--T
adjusting procedure.
S Saw willnot idle.SeeIDLESPEED--T ad-
justing procedure.
Idle Speed--T
Allow engine toidle. I f thechain moves, idle
istoofast. Iftheenginestalls,idleistooslow.
Adjustspeeduntil engineruns withoutchain
movement (idle too fast) or stalling (idle too
slow).
S Turn idlespeed screw (T) clockwise toin-
crease engine speed.
S Turn idle speed screw (T) counterclock-
wise to decrease engine speed.
If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer or call
1--800--554--6723.
BAR MAINTENANCE
Ifyoursaw cutstooneside,hasto beforced
throughthecut,orbeenrunwithanimproper
amount of bar lubrication it may be neces-
sarytoserviceyourbar. Awornbarwilldam-
age your chain and make cutting difficult.
After each use, ensure ON/STOP switch is
inthe S TOP position, thenclean allsawdust
from the guide bar and sprocket hole.
To maintain guide bar:
S MoveON/STOP switch t othe STOPposi-
tion.
S Loosen andremovechain brake nuts and
chain brake. Remove bar and chain from
saw.
S Cleanthe o ilholesandbargrooveaftereach
5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
S Whenrailtopisuneven,useaflatfiletore-
store square edges and sides.
Correct GrooveWorn Groove
File Rail Edges
and Sides
Square