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. Instatl new fuel filter on fuel
line; reinstall parts,
CHECK MUFFLER BOLTS
_ItWARNING: Avoid touching muf-
fler unless engine is coM. A hot muf- fler can cause serious burns.
We recommend att 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 welt as the car- buretor, tf you require further assis- tance or are unsure about performing this procedure, call our customer as- sistance help line at
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 witl not idte. 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.
Idle Speed
Screw
ADJUSTING PROCEDURE
CAUTION: Do not force plastic limiter caps on screws beyond the
Once each year, ensure muffler boits are secure and tightened properIy to prevent damage. Remove muffler cov- er and tighten the two muffler boIts (100 in/Ibs).
over
Initial Setting8
1.Turn the mixture screw counter- clockwise until it stops.
2.Turn the idle speed screw clock- wise until it stops. Now turn coun- terclockwise
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 acceptabIe, no further adjustments are necessary.
tf engine does not start, refer to TROUBLESHOOTING TABLE. If still
unable to remedy situation, call
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"
Atlow engine to idle. Then accelerate the engine and note performance. If engine hesitates, bogs down, or smokes during acceleration, turn MIX screw clockwise in
ments until performance is satisfactory. Repeat this procedure as necessary for proper adjustment. After completing adjustments, check for acceleration,
Reset if necessary. Acceleration Check
If engine dies or hesitates instead of accelerating, turn MIX screw counter-
clockwise until you have smooth accel- eration.
