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TO ADJUST CARBURETOR
The carbereterhas been presetat the factory
andadJus_nent s houldnotbe necessary.
However,miner adjusknentmay be required
to compansatefer differancas in fuel,
temperature,ai'dtudeer I_.
If tha _rt_reter
does need adjes_qanLproceed as follows:
In general,turningthe adjustingneedles In
(dockwlee)decreasesthe supplyoffuel to
the enginegMng a leaner fuel/air mixture.
Turningthe adjustingneedlesout (counter-
clockwise)lecreases the supplyof fuel to the
enginegivinga _
fueVairmixture.
IMPORTANT: Damage to the needlesand
seatsb carburetormay resultif turnedin too
Ught
NOTE: The carburetoron thisengine is low
e_.
It is equippedwith an idlefuel
adjustingneedlewith a limltercap, which
alows some adjusthlent withinthe limits
alowed bythe cap. Do not attemptto remove
the limltercap. The limitercap cannotbe
removedwi_oot breakingthe a_usting
needle.
1. Be sure youhave a cleanair filterand the
throifiecontrolcable is adjustedproperly
(seeabove).
2. Startengineand allow to warm for five
minutes. Make edjus_'_entswith engine
runningand sh_tJan
controllever in
neuV_ (N) pesiUan.
3. Idlespeed setting- WiththroifiecooV_
lever in slow po.si_on, engine shouldidle
at 1750 RPM. Ifencjineidles too sl_v or
fast, turnidle speed a_justingscrewin or
out L_I correctidle isattained.
4. Idlefuel needle setlJng - Withthrottle
con_ollever in slowposif_on, tom idlefuel
a_ustment needle In (dodoMse) until
enginebeginsto die andthen turnout
(seunterdsekwise) until engine ru_
rough.Turn noede to a pointmidway
between those two pesilJans,
5. Recheck idle speed. Reacyustif neses-
cary.
ACCELERATIONTEST -
6. Moveth_
con'_ol l ever from _
to
fast position, ffengine hedtates or dies,
turn idle fuel a(_ustJng needle out
(counterdcokwise) 1 /8 turn.Repeat test
andcan_nueto adjust,if necessary,an_l
engine acceleratessmoothly.
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 expedence to make any
necessary adjustments.
Idle Speed
Adjusting
Idle Fuel
Needle
28
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