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ENGINE
Maintenance, repair, or replacement of
the emission control devices and sys-
tems, which are being done at the
customers expense, may be performed
by any non-road engine repair establish-
ment or individual.Warranty repairs must
be performed by an authorized engine
manufacturer'seawice outlet.
TO ADJUST THROTTLE CONTROL
CABLE
The throttlecontrol has been presetat the
factory and adjustment should not be
necessary. Check adjustment as de-
scribed below before loosening cable. If
adjustment is necessary, proceed as
fotiows:
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 alignthe holes by
inserting a pencil or a 1/4" drillbit
through both holes.
4. Pull throttlecable up to remove slack
and tighten cable clamp screw.
Remove alignment pencil or drillbit,
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, turning the adjusting needles
in (dockwise) decreases the supply of
fuel tothe engine giving a leaner fuel/air
mixture.Turning the adjusting needles out
(counterclockwise) increases the supply
offuel to the engine givinga richerfuel/
air mixture.
IMPORTANT: Damage to the needles
and seats in carburetor may result if
turned intoo tight.
NOTE: The carburetor on this engine is
low emission. It is equipped with an idle
fuel adjustingneedle with a limiter cap,
which allows some adjustment within the
limitsallowed by the cap. Do not attempt
to remove the limitercap. The limiter cap
cannot be removed without breaking the
adjusting needle.
26
1. Be sureyouhavea dean airfilterandthe
throttlecontrolcableisadjustedproperly
(see above).
2. Startengtheand allewto warmfor five
minutes.Make acrjuslmentswithengine
runningand sh_lten conb'o_leverIn
neutral(N) position.
3. Idlesl_d ssttina -"W_ththrotaecontrol
leverin stow posilien,enginesbeuididle
at 1750 RPM. Ifengineidlestooslowor
fust, tam idlespeedadjustingscrewinor
outunf_lcorrect idleisattained.
4. Idlefuel needlesettina-WiththmttJe
ccoifd lever inslowpesilion, turnidlefuel
acjustmentneedle In (clockwise)until
enginebeginstod'=eandthenturnout
(counterclockwise) untilengineruns
rough. Turnneedleto apointmidway
betweenthose twopesi_ons.
5. Recheckidlespeed. Readjustif neces-
sary.
ACCELERATIONTEST -
6. Movethrottlecontrolleverfrom slowto
fastpeail_. Ifenginehesitatesor dies,
turnidlefuelaclustingneedleout
(counterdGd_dse)1/8turn.Repeattest
and continuetoadjust,ifnecessary,un_l
engineaccelerates smoothly.
Highspeed stopis factory adjusted. Do
notadjust - damage may result.
IMPORTANT: Nevertamper 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 youthinkthe
engine-govemed high speed needs
adjusting,contact a Sears or other
qualified service center, which has proper
equipment and experience to make any
necessary adjustments.
Cable
Clamp -_
Screw
Speed Control
IdleSpeed
Adjustin_
Screw
IdleFuel
Needle