Craftsman GASOLINE WEEDWACKER 358.7951 Operator's Manual page 10

There a re two adjustment
screws on
the carburetor.
Screw
(withUrniter Air Filter
Cap)
CARBURETOR PRESETS
When making carburetor preset adjust-
ments, do not force plastic limiter caps
beyond stops or damage will occur.
If carburetor presets are not needed,
proceed to ADJUSTING PROCEDURE,
IDLE SPEED.
To adjust presets:
• Turn mixture screw counterclockwise
until it stops.
• Turn the idle speed screw clockwise
until it stops. Now turn counterclock-
wise 4-1/2 turns.
• Start motor, cut grass fur 3 minutes,
and proceed to the adjustment
section. If engine does not start,
refer to troubleshooting chart or call
1-800-235-5878.
• ]f 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 "H"
DO NOT operate engine at full throt_e
for prolonged periods while making ad-
justments. Damage to the engine can
occur. Extend line to the length allow
by the line limtier and cut some grass.
Based on performance while cutting,
turn the mixture adjustment in
1/16-tom increments as follows:
• Clockwise until the engine has good
power while cutting with no hesita-
tion.
Do not adjust by sound or speed, but
judge by how well the engine per-
forms while cutting.
• Counterclockwise if the 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
accelerating, tom mixture adjustment
counterclockwise until you have
smooth acceleration. Recheck and ad-
just as necessary for acceptable per-
furmance.
Prepare unit fur 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 fTom
water heaters, electric motors or
switches, furnaces, etc.
• Store unit with all guards in place.
Position unti 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 fur a pedod
of time, clean it thoroughly before stor-
age. 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 IMPORTANT regarding the use
of gasohol in your engine.
Fuel stabilizer is an acceptable alter-
native in minimizing the formation of
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