Outlet Cover
Exhaust
_.
_/
Outlet
_o?';_
2-
.""-_"_. `
Exhaust
Outlet
must Nee
chain
brake
(bar side)
of chain
saw
10. Inspect
the muffler gasket
and replace
if
damaged.
11. Reinstall
baskplate,
outlet guide, muffler
gasket,
and muffler
using muffler
bolts.
Tighten
until secure.
12. Reinstall bolt cover and Iocknut.
Tighten
securely.
CARBURETOR
ADJUSTMENT
_l_ WARNING:
The chain will be mov-
ing during most of this procedure.
Wear your
protective
equipment
and observe
all safety
precautions.
The chain must not move at idle
speed.
The carburetor
has been carefully
set at the
factory.
Adjustments
may be necessary
if
you notice any of the following
conditions:
• Chain moves at idle. See iDLE SPEED-T
adjusting
procedure.
• Saw will not idle. See IDLE SPEED-T
ad-
justing procedure.
Idle
Speed-T
Allow engine to idle. If the chain moves,
idle
is too fast. Ifthe engine stalls, idle is too slow.
Adjust speed until engine runs without chain
movement
(idle too fast) or stalling
(idle too
slow).
The idle speed screw is located in the
area above the primer bulb and is labeled T.
• Turn idle speed screw
(T) clockwise
to in-
crease engine speed.
• Turn idle speed
screw
(T) counterclock-
wise to decrease
engine speed.
If you require further assistance or are unsure
about peffon-ning this procedure,
contact your
authorized
service
dealer
or
call
1-800-554-6723.
BAR
MAINTENANCE
If your saw cuts to one side. has to be forced
through the cut. or been run with an improper
amount
of bar lubrication
it may be neces-
sary to service your bar. A worn bar will dam-
age your chain and make cutting
difficult.
After each use. ensure
ON/STOP
switch
is
in the STOP position, then clean all sawdust
from the guide bar and sprocket
hole.
To maintain
guide bar:
• Move ON/STOP
switch to the STOP posi-
tion.
• Loosen and remove chain brake nuts and
chain brake,
Remove
bar and chain from
saw.
• Clean
the oil holes and bar groove
after
each 5 hours of operation.
Remove
Sawdust
From
Guide Bar Groove
\
Oil Holes
o c
• Burring
of guide
bar
rails
is a normal
process
of rail wear. Remove
these burrs
with a flat file.
• When rail top is uneven, use a flat file to re-
store square
edges and sides.
_
File Rail Edges_
FI FI
and Sides
I U I
Square
]
]
Worn Groove
Correct
Groove
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when exce-
ss heating or burring of the rails occurs. If re-
placement is necessary, use only the guide bar
specified for your saw in the repair parts list or
on the decal located on the chain saw.
CHAIN
SHARPENING
Chain sharpening
is a complicated
task that
requires
special
toots.
We recommended
you refer chain sharpening
to a professional
chain sharpener.
IGNITION
TIMING
Ignition timing is fixed and nonadjustable.
SPARK
PLUG
The spark
plug should
be
replaced
each
year to ensure the engine starts
easier and
runs better.
1.
Loosen 3 screws
on cylinder
cover.
2.
Remove the cylinder
cover.
3.
Pull off the spark
plug boot.
4.
Remove
spark
plug from cylinder
and
discard.
5.
Replace with Champion
RCJ-7Yspark
plug and tighten securely
with a 3/4 inch
(19 mm) socket wrench.
Spark plug gap
should be 0.025 inch (0.6 mm).
6.
Reinstall the spark
plug boot.
7.
Reinstall
the
cylinder
cover
and
3
screws.
Tighten
securely.
Screws
Cover
Plug Boot
Spark
Plug
15