Craftsman 358.351580 Operator's Manual page 16

Allowengineto idle.Adjustspeeduntil
enginerunswithoutchainmovement o r
stalling.
•Tum clockwise to increase engine
speed if engine stalls or dies.
° Tum counterclockwise to decrease
speed. _ ......
No further adjustmentsare necessary if
chain does not move at idlespeed and
if performance issatisfactory.
Low Speed Mixture "L"
Allow engine to idle. Then accelerate
the engine and note performance. If en-
gine hesitates, bogs down, or smokes
during acceleration, turn mixture screw
clockwise in 1/16-turn increments until
performance is satisfactory. Repeat this
procedure as necessary for proper ad-
justment. After completing adjustments,
check for acceleration and chain move-
ment at idle. Reset if necessary.
High Speed Mixture "H"
DO NOT operate engine at full throttle
for prolonged pedods while making ad-
justments. Damage to the engine can
occur. Make a test cut. Based on per-
formance of the sew while cutting,ad-
just the highspeed mixturesetting in
1/16-turnincrementsas follows:
• Clockwise untilthe sew has good
power in the cutwith no hesitation.
Do not adjust by sound or speed, but
judge by how well the saw performs in
the cut.
• Counterclockwiseif the saw has
speed, but dies in the cut or lacks
power in the cut.
After completingadjustments, check for
acceleration and chain movement at
idle. Reset if necessary.
Acceleration Check
If the engine dies or hesitates instead of
accelerating,tum the low speed mixture
adjustmentcountemlock'wise untilyou
have smoothacceleration with no chain
movement at idle. Recheck and adjust
as necessary for acceptable perfor-
mance.
Prepare your unit for storage at the end
of the season or if itwill not be used for
30 days or more.
WARNING:
• Allow the engine to cool, and secure
the unit before stodng or transporting.
• Store chain saw and fuel in a well
ventilated area where fuel vapors
cannot reach sparks or open flames
from water heaters, electric motors or
switches, fumacas, etc.
• Store chain sew with all guards in
place and positionchain saw so that
-.anysharp object cannot accidentally
cause injury.
• Store chain saw well.out of the reach
of children.
EXTERNAL SURFACES
If your chain sew is to be stored for a
period of time, clean it thoroughly be-
fore storage. Store in a clean dry area.
• Lightly oil external metal surfaces and
guide bar.
• Oil the chain and wrap it in heavy pa-
per or cloth.
' -FUEL SYSTEM
Under Fueling Engine in the Operating
Section of this manual, see message
labeled IMPORTANTregardingthe use
of gasohol in your chain saw.
Fuel stabilizer is an acceptable alterna-
tive in minimizingthe formation of fuel
gum depositsduring storage. Add stabi-
lizer to the gasoline in the fuel tank or
fuel storage container. Follow the mix
instructionsfound on stabilizer contain-
ers. Run engine at least 5 minutes after
adding stabilizer.
CRAFTSMAN 40:1, 2-cycle engine oil
(air cooled) is especially blended with
fuel stabilizer. If you do not use this
Sears oil, you can add a fuel stabilizer
to your fuel tank.
INTERNAL ENGINE
• Remove spark plug and pour I tea-
spoon of 40:1, 2-cycle engine oil (air
cooled) through the spark plug open-
ing. Slowly pull the starter rope 8 to
10 times to distribute oil.
• Replace spark plug with new one of
recommended type and heat range.
• Clean air filter.
• Check entire unit for loose screws,
nuts, and bolts. Replace any dam-
aged, broken, or worn parts.
• At the beginning of the next season,
use only fresh fuel having the proper
gasoline to oil ratio.
16