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2. Check that holes "A" in govemor control
lever and hole in govemor plate line-up.
If holes "A" are not aligned, loosen clamp
screw and move throttle cable until holes
are aligned. Tighten clamp screw
securely.
Governor
Governor Control Lever Control Plate
\
Holes
"A"
Clamp Screw Throttle
Cable
TO ADJUST CARBURETOR
NOTE: The carburetoronthisengineislow
emission. Itisequippedwithan idlefuel
adjusting needlewith a limitercap, which
allows some adjustment within the limits
allowed by the cap. Do not attempt to remove
the limitercap. The limitercap cannot be
removed without breaking the adjusting
needle.
The carburetor has been preset 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 thecarburetor
does need adjustment, proceed as follows:
In general, tuming idle mixture valve in
(clockwise) decreasesthe supplyoffuel to
the enginegMng a leaner fuel/air mixture.
Tumingthe idlemixture valve out (counter-
clockwise)increasesthesupplyof fueltothe
enginegivinga richerfuel/air mixture.
IMPORTANT: Damage tothe needlevalve
andthe seat incarburetor may resultif,screw
istumed intootight.
PREUMINARY SE'I-I-ING -
1. Air cleaner assembly must be assembled
to the carburetor when making carburetor
adjustments.
2. Be sure the throttle control cable is
adjusted properly (see above).
FINAL S EI-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.
2. Move throttle control lever to slew
pos_on. With finger, rotate and hold
throttle lever against idle speed screw.
Tum idle speed screw to attain 1750
RPM.
3. While still holding throttle lever against
idle speed screw, tum idle mixture valve
full travel clodoNise then counterclock-
wise until engine runs rough. Tum valve
to a point midway between those two
posilJons. Release throttle lever.
ACCELERATION TEST-
4. Move throttle control leverfrom slow to
fast position. If engine hesitates or dies,
tum idle mixture valve out (counterclock-
wise) 1/8 tum. Repeat test and continue
to adjust, if necessary, until engine
accelerates smoothly.
High speed stop isfactory adjusted. Do not
adjust or 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 a
Sears or other qualified service center,
which has proper equipment and experience
to make any necessary adjustments.
Idle Speed Screw
Throttle
Lever
Idle Mixture
Valve with
Limiter
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