Carburetor Adjustment - Craftsman 358.350980 Operator's Manual

20 in. bar 3.1 cu.in./50cc 2-cycle gasoline chain saw
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._..... Cutters
Depth Gauge
Drive Links
9.
Place chain over and behind clutch
drum, fitting the drive links in the
clutch drum sprocket.
10. Fit bottom of drive links between
the teeth in the sprocket
in the
nose of the guide bar.
11. Fit chain drive links into bar
groove.
12. Pull guide bar forward until chain is
snug in guide bar groove.
Ensure
all drive links are in the bar groove.
13. Now, install clutch cover making
sure the adjusting
pin is positioned
in the lower hole in the guide bar.
Remember
this pin moves the bar
forward
and backward
as the
screw is turned.
Clutch
Cover
14. Install bar nuts and finger tighten
only. Do not tighten any further
at this point. Proceed to CHAIN
ADJUSTMENT.
CHAIN ADJUSTMENT
See CHAIN TENSION in MAINTENANCE
section.
CARBURETOR
ADJUSTMENT
_IkWARNING:
The chain will be
moving 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 fol-
lowing conditions:
• Chain moves at idle. See IDLE
SPEED-T adjusting
procedure.
• Saw will not idle. See IDLE SPEED-T
adjusting
procedure.
Idle Speed-T
Allow engine to idle. If the chain moves,
idle is too fast. If the 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 screw (T) clockwise to in-
crease engine speed.
• Turn idle screw (T) counterclockwise
to decrease
engine speed.
If you require further assistance or are
unsure about performing this procedure,
contact your Sears Service Center or
call our customer assistance
help line at
1-800-235-5878.
21

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