Craftsman 917.255561 Service AN Adjustments, Engine, To Adjust Throttle Control Cable See Fig

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SERVICE AN ADJUSTMENTS

ENGINE

TO ADJUST THROTTLE CONTROL CABLE (See Fig. 29)

The throttle control has been preset at the factory and

adjustment should not be necessary, Check adjustment as described below before loosening cable. If adjustment is

necessary, proceed as follows:

•With ,engine,not, running_, move throttle control lever from SLOW to CHOKE position. Slowly movelever from "CHOKE" to "FAST" position.

•Checkthat holes"A" in governor control lever and hole in governor plate line-up if holes "A" are not aligned, loosen clamp screw and move throttle cable until ho_es are aligned. Tighten clamp screw securely.

GOVERNOR

GOVERNOR

CONTROLLEVER

CONTROL PLATE

 

HOLES"A"CLAMPTHROTTLE

SCREWCABLE

FIG. 29

TO ADJUST CARBURETOR (See Fig. 30)

The carburetor has been preset at the factory and adjust- ment should not be necessary. However, minor adjust* ment may be required to compensate for differences in fuel, temperature, altitude or load. ff the carburetor does need adjustment, proceed as follows:

In general, turning idle mixture vafve in (clockwise) de- creases the supply of fuel to the engine giving a leaner fuel/ air mixture. Turning the idle mixture valve out (counter- clockwise) increases the supply of fuel to the engine giving a richer fuel!air mixture.

IMPORTANT: DAMAGE TO THE NEEDLE VALVE AND THE SEAT IN CARBURETOR MAY RESULT IF SCREW IS

TURNED IN TOO TIGHT.

PRELIMINARY SETTING -

•Air cteaner assembly must be assembled tothe carbu- retor when making carburetor adjustments.

•Be sure the throttle control cable is adjusted properly (see above).

•With engine off turn idle mixture valve in (clockwise) closing it finger tight and then turn out (counterclock- wise) 1 fullturn.

FINAL SETTING -

•Start engine and allow to warm for five minutes. Make

final adjustments with engine running and shift/motion control lever in "NEUTRAL" position.

•Move throttle control lever to "SLOW" position. With finger, rotate and hold throttle lever against idle speed screw, Turn idle speed screw to attain 1750 RPM.

•While still holding throttle lever against idle speed screw, turn idle mixture valve In (clockwise) until en- gine begins to die and then turn out (counterclockwise) until engine runs rough. Turn valve to a point midway between those two positions. Release throttle lever.

ACCELERATION TEST -

•Move throttle control lever from "SLOW" to "FAST"

position, if engine hesitates or dies, turn idle mixture valveout (counterclockwise) 1/Sturn, Repeattest and continue to adjust, if necessary, until engine acceler- ates 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 ENGINEABOVE

THE FACTORY HIGH SPEED SETTING CAN BE

DANGEROUS. IF YOU THINK THE ENGINE.GOVERNED

HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR

NEARESTAUTHORIZED SERVICE CENTER, WHICH HAS PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS,

THROTTLE

IDLE SPEED

LEVER

SCREW

IDLE MIXTURE

VALVE

FIG, 30

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Contents Spesd Transaxle Lawn Tractor SEA/R $Safe Operation Practices for Ride-On Mowers Become Alert Your Safety is InvolvedCustomer Responsibilities =RODUCT SpecificationsMaintenance Agreement Limited 90 DAY Warranty on BatteryIndex Performance ACCE$$ORUSS and Attach ENT$Pack Contents HardwareUnpack Carton Tools Required for AssemblyTo Remove Tractor from Carton Before Rolling Tractor OFF SkidCheck Deck Levelness HOW to SET UP Your TractorPrepare Battery See Fig Check Tire PressureINSTALL BA3TEF Y See Figs AssemblyTHROTTLE/CHOKE Control OperationKnow Your Tractor Position To Move Forward and BackwardChoke Control LeverTo Transport OperatuonBefore Starting the Engine To Operate on HillsEngine StartEngine SeeBefore Each USE Maintenance ScheduleLubrication Chart General RecommendationsEdge UP TiresTo Sharpen Blade See Fig Lubrication Battery See FigBelts Starter AIR Filter Foam PRE-CLEANER See FigMuffler Spark PlugsTo Remove Mower See Fig Servnce AN AdjustmsntsTo Install Mower See Fig TractorFrontunkstrunnion To Level Mower HousingMowermustben Lowestheightofcutposn Adjustablepivot Bracket Deck Use wood2 x 4sor equivalentSee Fig Servhce and AdjustmentsTo Adjust Brake See Fig To Replace Mower Blade Drive BeltTo Remove Wheel for Repairs See Fig To Adjust Steering Wheel AlignmentTo Start Engine with a Weak Battery Front Wheel TOE-IN/CAMBERInterlocks and Relays Service and AdjustmentsTo Remove Hood and Grill See Fig To Replace Headlight BulbEngine Service AN AdjustmentsTo Adjust Throttle Control Cable See Fig To Adjust Carburetor See FigEngine OIL BatteryOther Fuel SystemCorrection ProblemCause Troubleshootbng Points Schematic 3134 ElectricalDescription ElectricalKEY Part NO. noChassis and Enclosures Repaurparts122795X KEY Part Description135034 127866 DrawbarRepaur Parts 816 x 3/4 DriveKEY Part Description NO. no Descripton Page NOo no Steering AssemblyUNF Seat AssemblyKEY Part C D E204 DecalsWheels & Tires KEY Part NO. noD E F G H I J Engine Repair PartsMower Mower 4270 Dana Transaxle .- Model Number2229J 2232J2231J 2230J663 105 611 127 131141 965 130 618Number 123Enucturr Briggs & Stratton Engine Model Number 283707, Type Number51Q 8ot 8o2 So3 005 Briggs & Stratton Engine Model Number 283707, Type NumberPart KEY Description ValveBRiGGS & Stratton Engine Model Number 283707, Type Number Service Notes Service Otes Suggested Guide for SiGHTiNG Slopes for Safe Operation Model Number HOW to Order Repair Parts
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