Craftsman 358.797550 Instruction Manual page 10

REPLACE SPARK PLUG
Replace spark plug each year to ensure
the engine starts easier and runs better.
Set spark plug gap at 0.025 inch. Igni-
tion timing is fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder
and discard.
3. Replace with Champion CJ-6Y
spark plug and tighten securely
with a 3/4 in. socket wrench.
4. Reinstall the spark plug boot.
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 MOUNTING
SCREWS
Once each year, ensure muffler
mounting screws are secure and tight-
ened properly to prevent damage.
Mounting
1. Loosen and remove the 2 screws
from the muffler cover.
2. Remove the muffler cover.
3. Tighten the 2 muffler mounting
screws securely.
4. Reinstall muffler cover and 2
screws. Tighten securely.
Fuel Filter
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. If you 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 LOW SPEED
MIXTURE ADJUSTMENT (L) under ad-
justing procedure.
• Engine dies or hesitates instead of ac-
celerating. See ACCELERATIONCHECK
under adjusting procedure.
• Loss of power. See MIXTURE ADJUST-
MENT (L or H) under adjusting proce-
dure.
There are two adjustment screws on
the carburetor. The low speed adjust-
ment screw is marked with the letter L,
and the high speed adjustment screw
is marked with the letter H. The throttle
lever is used to control engine speed.
The throttle lever can be placed in one
of four positions: STOP, IDLE or "_,
FULL THROTTLE or _, and one inter-
mittent position.
Primer Button
Throttle Lever
j -Adjustment "H"
Adjustment "L"
-10-