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ENGINE
Maintenance, repair,or replacement of the
emissioncontrol devices and systems, which
are being done at the customersexpense,
may be performed by any non-road engine
repair establishment or individual. Warranty
repairs must be performed by an authonzed
engine manufectureCs service outlet.
TO ADJUST THROTTLE
CONTROL
CABLE
The throttlecontrolhas been preset at the
factory and adjustmentshould not be
necessary. Check adjustment as described
below before loosening cable. If adjustment is
necessary, proceed as follows:
1. With engine not running,move throttle
control lever from slow to choke position.
Slowly move lever from choke to fast
position.
2. Check to see if hole in throttle lever and
hole in speed control bracket are aligned.
3. If holes are not aligned, loosen cable
clamp screw and align the holes by
inserting a pencil or a 1/4" drill bit through
both holes.
4. Pull throttle cable up to remove slack and
tighten cable clamp screw. Remove
alignment pencil or drill bit.
TO ADJUST CARBURETOR
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 the carburetor
does need adjustment, proceed as follows:
In general, tuming the adjusting needles in
(clockwise) decreases the supply of fuel to
the engine giving a leaner fueVair mixture.
Tuming the adjustingneedles out (counter-
clsekwise) increases the supply of fuel to the
engine giving a ricberfueVair mixture.
IMPORTANT: Damage to the needles and
seats in carburetor may result if turned in too
tight.
NOTE: The carburetoron thisengine is low
emission, it is equipped with an idlefuel
adjusting needle with a limiter cap, which
allows some adjustmentwithin the limits
allowed by the cap. Do not attempt to remove
the limitercap. The limitercap cannot be
removed without breaking the adjusting
needle.
1. Be sure you have a clean air filter and the
throttlecontrol cable is adjusted property
(see above).
2. Start engine and allow to warm for five
minutes. Make adjustments with engine
running and shift/motion control lever in
neutral (N) position.
3. Idle seeed setting - With throttle control
lever in slow position, engine should idle
at 1750 RPM. If engine idles too slow or
fast, tum idle speed adjusting screw in or
out until correct idle is attained.
4. Idlefuel needle setting - With throttle
control lever in slow position,turn idle fuel
adjustment needle in (clockwise) until
engine beginsto die and then tum out
(counterclockwise)until engine runs
rough. Turn needle to a point midway
between those two positions.
5. Recheck idle speed. Readjust if neces-
sary.
ACCELERATION TEST -
6. Move throttlecontrol lever from slow to
fast position. If engine hesitates or dies,
turn idle fuel adjustingneedle out
(counterclockwise)1/8 turn. Repeat test
and continueto 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 a Sears or other
qualified service center, which has proper
equipment
and experience to make any
necessary
adjustments.
srPecedetC
_
ver
IdleSpeed
Adjusting_,,f_
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