Craftsman 358.797310 - Manual (Page 10)

REPLACE FUEL FILTER
To replace fuel filter, drain unit by run­
ning it dry of fuel, then remove fuel
cap/retainer assembly from tank. Pull
filter from tank and remove it from the
fuel line. Install new fuel filter on fuel
line; reinstall parts,
CHECK MUFFLER BOLTS
A WARNING: Avoid touching muf­
fler unless engine is cold. A hot muf­
fler can cause serious burns.
Once each year, ensure muffler bolts
are secure and tightened properly to
prevent damage. Remove muffler cov­
er and tighten the two muffler bolts
(100 in/ibs).
SERVICE AND ADJUSTMENTS
We recommend all service and adjust­
ments not listed in this manual be per­
formed by your Sears Service Center,
CARBURETOR ADJUSTMENT
Carburetor adjustment is critical and if
done improperly can permanently
damage the engine as well as the car­
buretor. Sfyou require further assis­
tance or are unsure about performing
this procedure, call our customer as­
sistance help line at 1-800-235-5878.
Old fuel, a dirty air filter, a dirty fuel fil­
ter, or flooding may give the impres­
sion of an improperly adjusted carbu­
retor. Check these conditions before
adjusting the carburetor.
The carburetor has been carefully set
at the factory. Adjustments may be
necessary if you notice any of the fol­
lowing conditions:
• Engine will not idle. See IDLE SPEED
and MIXTURE under adjusting
procedure.
• Engine dies or hesitates instead of
accelerating. See ACCELERATION
CHECK under adjusting procedure,
• Loss of power. See MIXTURE under
adjusting procedure.
ADJUSTING PROCEDURE
CAUTION; Do not force plastic limiter
caps on screws beyond the built-in
stops or damage will occur.
Initial Settings
1. Turn the mixture screw counter­
clockwise until it stops.
2. Turn the idle speed screw dock-
wise until it stops. Now turn coun­
terclockwise 4-1/2 turns.
3. Start motor and let it run for 3 min­
utes, then proceed to adjust
screws according to the instruc­
tions below. If engine performance
at initial settings is acceptable, no
further adjustments are necessary.
If engine does not start, refer to
TROUBLESHOOTING TABLE. If Still
unable to remedy situation, cail
1-800-235-5878.
Idle Speed “IDLE”
Allow engine to idle. Adjust speed until
engine runs without stalling.
• Turn IDLE screw clockwise to in­
crease engine speed,
• Turn IDLE screw counterclockwise to
decrease engine speed.
Mixture “MIX”
Allow engine to idle. Then accelerate
the engine and note performance, if
engine hesitates, bogs down, or
smokes during acceleration, turn MIX
screw clockwise in 1/16-turn incre­
ments until performance is satisfactory.
Repeat this procedure as necessary
tor proper adjustment. After completing
adjustments, check tor acceleration.
Reset if necessary.
Acceleration Check
It engine dies or hesitates instead of
accelerating, turn MIX screw counter­
clockwise until you have smooth acoel-
eralion.
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