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TO ADJUST
CHOKE
CONTROL
The choke control has been preset at the
factory and adjustment should not be
necessary, check adjustment as de-
scribed below before loosening cable. If
adjustment is necessary, proceed as
follows:
1. With engine
not running,
move choke
control (located
on dash panel) to full
choke position.
2.
Remove
air cleaner
cover, filter and
cartridge
plate to expose
carburetor
choke (See "AIR FILTER"
in the
Maintenance
section
of this manual).
3.
Choke should be closed.
If it is not,
loosen
casing clamp screw and move
choke cable until choke is completely
closed.
Tighten
casing clamp screw
securely.
4.
Reassemble
air cleaner.
Closed for Full
Chok,
TO ADJUST
CARBURETOR
The carburetor has been present at the
factory and adjustment should not be
necessary.
However, minor adjustment
may be required to compensate
for
differences in fuel, temperature,
altitude
or load. If the carburetor does need
adjustment,
proceed as follows:
In general,
turning the adjusting needles
in (clockwise)
decreases the supply of
fuel to the engine giving a leaner fuel/air
mixture. Turning the adjusting needles out
(counterclockwise)
increases
the supply
of fuel to the engine giving a richer fuel/
air mixture.
IMPORTANT:
Damage to the needles
and the seats in carburetor may result if
screw is turned in too tight.
PRELIMINARY
SEI-IING
-
1. Be sure you have a clean air filter, and
the throttle
control cable is adjusted
properly
(see "TO ADJUST
THROTTLE
CONTROL
CABLE"
in the
Service
and Adjustments
section
of
this manual).
2.
With engine off turn idle fuel adjusting
needle in (clockwise)
closing it finger
tight and then turn out (counterclock-
wise) 1 turn.
FINAL SEI-I-ING
-
1. Start engine and allow to warm for five
minutes.
Make final adjustments
with
engine
running
and shift/motion
control
lever in neutral
(N) position.
NOTE: The high idle is set at the factory
and cannot be adjusted.
2.
Idle speed setting
- With throttle
control
lever in slow
position,
engine
should
idle at 1200 RPM. If engine
idles too slow or fast, turn idle speed
adjusting
screw
in or out until correct
idle is attained.
3.
Idle fuel needle setting
- With throttle
control
lever in slow position,
turn idle
fuel adjusting
needle in (clockwise)
until engine
speed
decreases
and
then turn out (counterclockwise)
approximately
3/4 turn to obtain the
best low speed
performance.
4.
Recheck
idle speed.
Readjust
if
necessary.
ACCELERATION
TEST -
5.
Move throttle control
lever from slow to
fast position.
If engine hesitates
or
dies, turn idle fuel adjusting
needle
out (counterclockwise)
1/8 turn.
Repeat test and continue
to adjust,
if
necessary,
until engine
accelerates
smoothly.
High speed stop is factory adjusted.
Do
not adjust-damage
may result.
IMPORTANT:
Never tamper with the
engine
governor,
which is factory
set for
proper
engine
speed.
Overspeeding
the
engine
above
the factory
high speed
setting
can be dangerous.
If you think the
engine-governed
high speed
needs
adjusting,
contact
Sears or other qualified
service center, which has proper equip-
ment and experience
to make any
necessary
adjustments.
29
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