Filter
Top Products
14
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases f ue l consumption and
harmful emissions. Always clean after 10
tanks of fuel or 5 hours of operation, which-
ever comes first. Clean more frequently in
dusty conditions. Ausedairefiltercannever
be completely cleaned. It is advisable tore-
placeyourairfilterwithanewoneafterevery
50hoursofoperation,orannually,whichever
comes first.
1. Loosen 3 screws o n cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Cleanthe airfilter usinghotsoapywater.
Rinsewithcleancoolwater. Airdrycom-
pletely before reinstalling.
5. Lightly oilair filter before installing to im-
prove the efficiency of air filter. Use
2--cycle engineoil or motoroil (SAE30).
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
As theunit is used, carbon deposits buildup
on the muffler and spark arresting screen,
andmustberemovedtoavoidcreating afire
hazard or affecting engine performance.
Replacethespark arrestingscreenifbreaks
occur.
Muffler Diffuser
Muffler
Cover
Screws
Muffler
Cover
Muffler
Body
Spark
Arresting
Screen
Cleaning is required every 25 hours of o pera-
tion or annually , whichever comes first.
1. Loosen and remove the 2 muffler cover
screws.
2. Removethemuffler cover (cover snaps off
muffler body).
3. Remove muf fler dif fuser and spark arrest-
ingscreenassembl y .Notice th eorientatio n
of these parts for reassembling.
4. Clean thespark arrestor screenwithawire
brush.Replace screen ifbreaks arefound.
5. Replace any broken or cracked muffler
parts.
6. Reinstalldiffuserandspark arrestorscreen
assembly with round holes facing up.
7. Reinstall muffler cover and 2 screws.
Tighten securely.
CARBURET OR A DJUSTMENT
WARNING: The chain will bemov-
ingduring mostofthis procedure. Wearyour
protective equipment andobserve all safety
precautions.Thechainmustnotmoveatidle
speed.
The carburetor has been carefully set at the
factory . Adjustments may be necessary if
you notice any of the following conditions:
S Chainmoves at idle.See IDLE SPEED--T
adjusting procedure.
S Sawwill notidle.See IDLESPEED--T ad-
justing procedure.
Idle Speed--T
Allow engine to idle. If the chain moves, idle
istoofast. Iftheenginestalls,idleistooslow .
Adjustspeeduntil engineruns withoutchain
movement (idle too fast) or stalling (idle too
slow). Theidle speedscrewis locatedinthe
area above the primer bulb and is labeled T.
S Turn idlespeed screw (T) clockwise to in-
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 MAI NTENANCE
If your saw cuts to one side, has to be forced
through the cut, or been run with an i mproper
amount of bar lubrication i t may be necessary
to service your bar . A worn bar will damage
your chain and make cutting difficu lt.
After each u se, ensure ON/STOP switch is in
theSTOPposition,thencleanallsawdust from
the guide bar and sprocket hole.
To maintain guide bar:
S M ove ON/STOP switch to the STOP posi-
tion.
S Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.
S Cleanthe oilholes andbargroove aftereach
5 h ours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
S Burringof guidebar rails is anormalprocess
of rail wear . Remove these burrs with a flat
file.
S When rail top is uneven, use a flat file to re-
store square edges and sides.
Correct GrooveWorn Groove
File Rail Edges
and Sides
Square