Craftsman 358.796090 Operator's Manual page 10

If carburetor presets are not needed,
proceed to "Adjusting Procedure, Idle
Speed."
TO adjust presets:
• Turn mixture screw counterclockwise
until it stops.
• Turn the idlespeed screw clockwise
until it stops. Now turn counterclock-
wise 4-1/2 turns.
• Start motor, cut grass for 3 minutes,
and proceed to the adjustment
section. If engine does not start,
refer to troubleshooting chart or call
the 1-800 number found on the front
of this manual.
• If engine performance is acceptable
at the preset positions, no further
adjustment is necessary.
ADJUSTING PROCEDURE
Idle Speed
Allow engine to idle. Adjust speed until
engine runs without stalling.
° Turn clockwise to increase engine
speed if engine stalls or dies.
• Turn counterclockwise to decrease
speed.
No further adjustments are necessary
if performance is satisfactory.
Mixture Adjustment
DO NOT operate engine at full throttle
for prolonged periods while making ad-
justments. Damage to the engine can
occur. Replace cutting line with a new
piece of line, and cut some grass.
Based on performance while cutting,
turn the mixture adjustment in
t/16-turn increments as follows:
• Clockwise until the engine has good
power while cutting with no hesitation.
Do not adjust by sound or speed, but
judge by how well the engine per-
forms while cutting.
• Counterclockwise if engine has speed
but dies or lacks power while cutting.
After completing adjustments, check
for acceleration. Reset if necessary.
Acceleration Check
If engine dies or hesitates instead of ac-
celerating, turn mixture adjustment court
terclock_se until you have smooth ac-
celeration. Recheck and adjust as
necessary for acceptable performance.
Prepare unit for storage at end of sea-
son or if it will not be used for 30 days
or more.
WARNING:
• Allow engine to cool, and secure the
unit before stodng or transporting.
• Store unit and fuel in a well venti-
lated area where fuel vapors cannot
reach sparks or open flames from
water heaters, electric motors or
switches, furnaces, etc.
• Store unit with all guards in place.
Position unit so that any sharp object
cannot accidentally cause injury.
• Store unit and fuel well out of the
reach of children.
EXTERNAL SURFACES
If your unit is to be stored for a period of
time, clean it thoroughly before storage.
• Store in a clean dry area.
• Lightly oil external metal surfaces.
FUEL SYSTEM
Under Fueling Engine in the Operating
Section of this manual, see message
labeled IMPORTANTregarding the use
of gasohol in your engine.
Fuel stabilizer is an acceptable alter-
native in minimizing the formation of
fuel gum deposits during storage. Add
stabilizer to the gasoline in the fuel
tank or fuel storage container. Follow
the mix instructions found on stabilizer
container. Run engine at least 5 min-
utes after adding stabilizer.
CRAFTSMAN 40:1,2-cycle engine oil
(air cooled) is already blended with
fuel stabilizer. If you do not use this
Sears oil, you can add a fuel stabilizer
to your rue! 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.
10