Craftsman 917.289031 To Adjust Carburetor, Preliminary Setting, Final Setting, Acceleration Test

Page 26

2.Checkthat holes'A"in governorcontrol

lever and hole in governor plate line-

up. If holes '_'are not aligned, loosen clamp screw and move throttle cable until holes are aligned. Tighten clamp screw securely°

Governor Control Lever Governor Control Ptate

' i

_--_. _,:_ c,

Holes 'At'-'P'_'_/_J_llb,_l _ Throttle

[ _;I Clamp _b_jl_,_j Cable

"-- '_/J Screw

TO ADJUST CARBURETOR

NOTE: The carburetor on this engine is

low emission. It is equipped with an idle fuel adjusting needle with a limiter cap, which allows some adjustment within the limits allowed by the cap. Do not attempt to remove the limiter cap. Tile limiter cap cannot be removed without breaking the adjusting needle,

The carburetor has been preset at the fac- tory and adjustment should not be neces- saryo 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 idle mixture valve in (clockwise) decreases the supply of fuel to the engine giving a leaner fuel/air mixture° Turning the idle mixture valve out (counter- clockwise) increases the supply offuel 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

'I. Aircleanerassembty must be assembled to the carburetorwhen making carburetor adjustments°

2.Be sure the throttle control cable is ad- justed properly (see above).

FINAL SETTING -

1.Start engine and allow to warm for five minutes. Make final adjustments with engine running and shift/motion control lever in neutral (N) position°

2.Move throttle control lever to slow posi- tiono With finger, rotate and hold throttle lever against idle speed screw. Turn idle speed screw to attain 1750 RPMo

3.While still holding throttle lever against

idle speed screw, turn idle mixture valve full travel clockwise then counter-

clockwise until engine runs rough, TiJrn valve to a point midway between those two positions, Release throttle lever,

ACCELERATION TEST -

4, Move throttle control lever from slow

to fast position, If engine hesitates or dies, turn idle mixture valve out (coun- terclockwise) 1/8 turn. Repeat test and continue to adjust, if necessary, until engine accelerates smoothly.

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

IMPORTANT'; Never tamperwiththe engine governor, which is factory set for proper engine speed. Overspeeding the engine above the factory high speed setting can be dangerous. If you thinkthe 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,

Idle Speed

r

_

''"_."'°'" Throttle

Screw _--_

 

 

Lever

C

Idle Mixture Valve _

With Limiter

26

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Contents Lawn Tracto Sears Craftsman Help LineCraftsman Limited Warranty TWO Years on Tractor Days on BatteryGeneral Operation III. Children Service Safe Handling of GasolineSlope Operation General Service Specifications 1tlt11111t Adapter Install Steering Wheel Tools Required for AssemblyAssemble Extension Shaft and Boot Install SeatLabel Check BatteryTo Roll Tractor OFF Skid Check for Proper Position of ALL Belts Check Tire PressureCheck Deck Levelness Check Brake System@@@ Know Your Tractor Reverse Operation System ROSStopping Mower Blades HOW to USE Your Tractor to SET Parking BrakeTo Adjust Mower Cutting Height Ground DriveMower Before Starting the Engine Check Engine OIL Level Towing Carts and Other AttachMents ADD GasolineMowing Tips Schedule MaintenanceBefore Blade Care Blade RemovalTransaxle Cooling BatteryTo Clean Battery and Terminals BeltsIN-LINEFUEL Filter CleaningClean AIR Screen AIR FilterTractor To Remove Mower Service or AdjustmentsTo Install Mower FRONT-TO-BACK Adjustm ENT To Level Mower HousingSID E-TO-S IDE Adjustment Belt Removal Belt InstallationTo Replace Mower Blade Drive Belt To Check BrakeFront Wheel TOE-IN!CAMBER Sembly To Adjust Throttle Control CableTo Remove Hood and Grill AS Final Setting To Adjust CarburetorPreliminary Setting Acceleration TestEngine OIL TractorFuel System CylindersEngine will not turn over Problem CauseCorrection Problem Mower Poor Cut unevenCutting WillEngine dies when tractor is shifted into reverse CausecorrectionSuggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAXGARANTiA Limitada DE Craftsman Page Generales IV. RemolqueDE LA Gasolina Page DEL Hoja de pendiente Llaves LA Corredera Herramientas Necesarias Para EL MontajeAntes DE Remover EL Tractor DE Adjunte EL VolanteVerifique LA Bateria Para Hacer Rodar EL TractorLista DE Revision Revision DE LA Presion DE LAS LlantasDA DE Todas LAS Correas @@@ Macho DE LA Palanca DE Levanta Pedal DEL EMBRAGUE/FRENO Se usaPara Moverse Hacia Adelante Y HA Como Usar SU TractorMiento CIA AtrasPara Operar EN Cerros Para Parar LAS Cuchillas DE LA SegaUsar EL Sistema DE Funcionamiento Para Transpo RtarMotor Arranque CON Tiempo FRO 50 Y Menos Consejos Para SegarImportante Generales Tabla DE LubricacionAntes DE Cada Cuidado DE LA Cuchilla LlantasVirifiiz S1STEMA Presencia Operador Correas NalesEnfriamiento DEL Transeje LUBRICACI6NBujias Tractor Para Remover LA Segadora Para Instalar LA SegadoraAjuste DE Lado a Lado Para Nivelar LA Caja DE LA SegaDora Ajuste Desde Adelante Hacia ATR,SIMPULSI6N DE Movimiento DE ImpulsionSegadora Reemplazar LA Bateria Para Adjuntar LOS Cables DE EmpalmePara Remover LOS CABLES, Invierta EL Orden Para Cambiar LA Bombilla DE LA LUZ DelanteraAjuste Final Para Ajustar EL Cable DE Control DE LA ACELERACI6NAjuste Preliminar Prueba DE LA AceleracionAceite DEL Motor OtrosEl motor suena pero noarranca Identificacion DE ProblemasSears Ma corte-disparejo ProblemaVibraci6n excesiva El tractor se port en marcha atr&s Mala descarga del csped ProblemaLas cuchillas Page Page OPERAClON Segura Ea/rs

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