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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 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.
There is one adjustment
screw on the
carburetor.
It is located below the air
filter cover.
f
Mixture
Screw with Limiter CaD
ADJUSTING
PROCEDURE
CAUTION:
do not force plastic Iimiter
caps on screw beyond the built-in
stop
or damage will occur.
Initial Settings
1. Turn the mixture screw counter-
clockwise
until it stops.
2. Start motor, let it run for 3 minutes,
then proceed to adjust screw ac-
cording to the instructions
below. If
engine performance
at initial set-
tings is acceptable,
no further ad-
justments
are necessary.
If engine
does not start, refer to TROUBLE-
SHOOTING TABLE.
If still unable to
remedy situation,
call 1-800-235-
5878.
Mixture
Allow engine to idle. Then accelerate
the engine and note performance.
If
engine hesitates,
bogs down, or
smokes during acceleration,
turn mix-
ture screw clockwise
in 1/16-turn incre-
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 mixture screw coun-
terclockwise
until you have smooth ac-
celeration.
-8-
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