Craftsman 316380900 user manual download

For Devices:Craftsman 316380900   and 1 more
Languages:English
Pages:64
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Page 26 of 64
ADJUSTING
THE iDLE
SPEED
_
ARNING"
The saw chain may spin during idle speed
[
adjustments.
Wear protective
clothing
and observe
all
J
safety instructions
to prevent
serious
personal
injury.
NOTE: Careless adjustments
can seriously damage the unit. A Sears or
other qualified service dealer should make carburetor adjustments.
if, after checking
the fuel and cleaning
the air filter, the engine still
will not idle, adjust the idle speed screw as follows:
1.
Start the engine. Refer to
Starting
and Stopping.
2.
Release the throttle control and let the engine idle.
if the engine stops, use a small Phillips or flat-head
screwdriver
to turn the idle speed screw clockwise,
1/8 of a turn at a time
(as needed) until the engine idles smoothly
(Fig. 44).
if the engine
idles too quickly,
turn the idle speed screw
counterclockwise,
1/8 of a turn at a time
(as needed) to reduce
the idle speed
(Fig. 44).
NOTE: The saw chain should not spin when the engine idles, if it
does, reduce the idle speed until the saw chain stops
moving.
Checking
the fuel, cleaning
the air filter, and adjusting
the idle speed
should solve most engine problems,
if not, and any of the following
conditions
are true, take the unit to a Sears or other qualified
service
dealer:
the engine will not idle
the engine hesitates
or stalls on acceleration
there is a loss of engine
power
Fig.
44
[die
Speed
Screw
MAiNTAiNiNG
THE
SPARK
PLUG
1.
Stop the engine
and allow
it to cool.
2.
Turn the knob on the air filter cover counterclockwise
to loosen
the air filter cover (Fig. 42).
3.
Remove the air filter cover (Fig. 42).
4.
Grasp the spark
plug boot firmly
and pull it from the spark
plug
(Fig. 45).
5.
Clean around the spark plug. Remove the spark plug from the
cylinder head with the multi-purpose
tool or a 5/8-inch
socket
wrench,
turning
counterclockwise.
_
ARNING:
Do not sand blast, scrape or clean spark plug [
electrodes.
Grit in the engine could
damage
the cylinder.
]
6.
inspect the spark plug. if the spark
plug is cracked,
fouled or
dirty, replace
it with
replacement
part #753=08107,
a Champion
ROJ6Y or an equivalent
spark
plug.
7.
Use a feeler gauge to set the air gap at 0.025
in.
(0.635 ram)
(Fig. 46).
8.
install the spark
plug in the cylinder
head. Tighten
the spark
plug
with the multi-purpose
tool or a 5/8-inch
socket
wrench,
turning
it clockwise
until snug.
NOTE: if using a torque wrench,
torque
to:
110-120
in._lb.
(12.3=13.5 Nora).
Do not
over tighten.
9.
Reattach
the spark plug boot.
10. Place the air filter cover back onto the unit. insert the tab on the
air filter cover
into the slot on the chain saw housing
(Fig. 42).
11. Turn the knob clockwise
to tighten
the air filter cover securely.
j
Fig.
45
S
0.025
in.
{0.635
rnrn)
Fig.
46
26
Sample