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Check that holes 'F," in governor
control
lever
and hole in governor
plate
line-
up
if holes 'A" are not aligned,
loosen
clamp screwand
move throttle cable until
holes are aligned.
Tighten
clamp screw
securelyr
Governor Control Lever
Governor
Control
Plate
t
Holes .... ..-i.. :,-T---
/m_t
-, -T
A
_ ,,
_
_
_1
Throttle
[
';_,;
ulamp
_UIJIL,_j
Cahla
t J
.....
..... _) Screw
TO ADJUST
CARBURETOR
NOTE:
The
carburetor
on this engine
is
tow emission°
It is equipped
with an idle
fuel
adjusting
needle
with
a limiter
cap,
which
allows
some
adjustment
within
the
limits allowed
by the cap.
Do not attempt
to remove
the limiter cap,. The limiter cap
cannot
be removed
without
breaking
the
adjusting
needle.
The carburetor
has been preset at the fac-
tory and adjustment
should
not be neces-
saryo
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
idle
mixture
valve
in
(clockwise)
decreases
the supply
of fuel to
the engine
giving
a leaner fuellair
mixture.
Turning the idle mixture
valve out (counter-
clockwise)
increases
the supply of fue! to the
engine
giving a richer fuellair
mixture°
IMPORTANT:
Damage to the needle valve
and the seat in carburetor
may result if screw
is turned
in too tight.
PRELIMINARY
SETTING
-
1.. Air cleaner assembly
must be assembled
to the carburetorwhen
making carburetor
adjustments,
2_ Be sure the throttle
control
cable is ad-
justed
properly
(see above).
FINAL SETTING
-
t.
Start engine
and allow to warm for five
minutes,
Make final
adjustments
with
engine
running
and shift/motion
control
lever in neutral
(N) position_
2.
Move throttle
control
lever to slow posi-
tion. With finger, rotate and hold throttle
lever against idle speed screw,. Turn idle
speed screw to attain
1750 RPM
3. While
still holding
throttle
lever against
idle
speed
screw,
turn
idle
mixture
valve full travel clockwise
then counter-
clockwise
until engine
runs rough.
Turn
valve to a point midway
between
those
two positions.
Release
throttle
level
ACCELERATION
TEST -
4
Move
throttle
control
lever
from
slow
to fast position
If engine
hesitates
or
dies, turn idle mixture
valve
out (coun-
terclockwise)
It8 turn.
Repeat test and
continue
to adjust,
if necessary,
until
engine accelerates
smoothly_
High speed stop is factory adjusted,
Do not
adjust - damage
may resulL
IMPORTANT:
Nevertamperwith
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 a Sears
or other qualified
service
center, which has
proper equipment
and experience
to make
any necessary
adjustments
Idle Speed
[-
Throttle
Screw--_
d
Idle
i
With Lirniter
26
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