TO ADJUST CARBURETOR

Thecarburetorhasbeenpresetat thefactory andadjustmentshouldnotbe necessary, However,minoradjus_ant may be required tocompensatefordifferencesin fuel, temperature,altitudeorload.Ifthe cadouretor doesneed adjustment,proceedas follows:

In general,turningthe adjuslJngnsedlesin (clockwise)decreasesthesupplyoffuel to the enginegMng a leanerfueVairmixture.

Turningtheadjustingnsedlesout (counter- clockwise)increasesthesupplyoffuel tothe enginegivinga richerfuel/air mixture.

IMPORTANT:Damagetothe needlesand seatsin carburetormay resultiftumsdintoo tighL

NOTE: The carburetoron thisengineislow emissionIt. is equippedwithan idlefuel adjustingneedlewitha limitercap, which allowssomeadjustmentwithinthe limits allowedbythecap. Do not attempttoremove thelimitarcap.The Iimitercapcannotbe

removedwithoutbreakingthe adjusting needle.

1.Be sureyou havea cleanairfilterandthe

throttlecontrolcable is adjustedproperly

(seeabove).

2.Startengineandallowto warmfor five minutes.Makeadjustmentswithengine runningand shifl/motlencontrolleverin neutral(N) position.

3.Idlesneedsettin?- W'_throtifeoontrol leverin slow position,engineshouldidle at 1750 RPM. Ifengineidlestooslowor

fast, turnidlespesdadjustingscrewin or out untilcorrectidleis attainsd.

4.Idlefuel needlesottine- Withthrottle controllever inslowposition,turnidlefuel adjustmentneedlein (clockwise)until enginebeginstodie and thenturn out (counterclockwise)untilengineruns

rough.Turnneedletoa pointmidway betweenthosetwopnsltions.

5.Recheckidlespeed.Readjustifnecas- sery.

ACCELERATIONTEST -

6.Movethroltle controlleverfrom slowto fast positionIf. enginehesitatesor dies, turn idlefuel adjuslingneedleout

(counterclockwise)1/8turn. Repeattest andcontinueto adjust,if necessary,until engineacceleratessmoothly.

High speed stop is factory adjusted.Do not adjust- damage may result.

IMPORTANT: Never tamper with the engine governor,whichis factory set for proper engine speed. Overspeedingthe engine above the factory high speed settingcan be dangerous.If you thinkthe engine-governedhigh speed needs adjusting,contacta Sears or other qualifiedservice center, whichhas prope= equipmentand experienceto make any necessary adjustments.

Idle Speed

Adjusting

Screw _

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Craftsman 917.27206 owner manual To Adjust Carburetor, Accelerationtest

917.27206 specifications

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