Replace Spark Plug; Replace Fuel Filter; Carburetor Adjustment; Adjusting Procedure - Craftsman 358.795390 Operator's Manual

Cleaning the air filter:
A dirty air filter decreases engine per-
formance and increases fuel consump-
tion and harmful emissions. Always
clean after every 5 hours of operation.
1. Clean the cover and the area
around it to keep debris from falling
into the carburetor chamber when
the cover is removed.
2. Remove parts as illustrated.
NOTE: Do not clean filter in gasoline
or other flammable solvent. Doing so
can create a fire hazard or produce
harmful evaporative emissions.
3. Wash the filter in soap and water.
4. Allow filter to dry.
5. Add a few drops of oil to the filter;
squeeze filter to distribute oil.
6. Replace pads.
REPLACE SPARK PLUG
Replace spark plug each year to en-
sure the engine starts easier and runs
better. Set spark plug gap at 0.025 in.
Ignition timing is fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder
and discard.
3. Replace with Champion RCJ-8Y
spark plug and tighten with a 3/4 in.
socket wrench (10-12 ft.-Ibs).
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 pads.
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 dam-
age the engine as well as the carbure-
tor. If you require further assistance or
are unsure about performing this pro-
cedure, call our customer assistance
help line at 1-800-235-5878.
Old fuel, a dirty air filter, a dirty fuel fil-
ter, or flooding may give the impression
of an improperly adjusted carburetor.
Check these conditions before adjust-
ing 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 clockwise
until it stops. Now turn counterclock-
wise 4-1/2 turns.
3. Start motor and let it run for 3 min-
utes, then proceed to the adjust
screws according to the instructions
below. If engine performance at ini-
tial settings is acceptable, no further
adjustments are necessary. If en-
gine does not start, refer to TROU-
BLESHOOTING TABLE. If still unable
to remedy situation, call
1-800-235-5878.
Low Speed Idle Speed
Screw /._... Screw
High Speed Screws with
Screw Umiter
H L
-8-