Craftsman 410, 272 owner manual To Adjust Carburetor, Acceleration Test

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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 (clockwise) decreases the supply of

fuel to the engine giving a leaner fuel/air mixture. Turning the adjusting needles out (counterclockwise) Increases the supply of fuel to the engine giving a richer fuel/ air mixture.

IMPORTANT: Damage to the needles and seats in carburetor may result if turned in too tight.

NOTE: The carburetor on this engine is low emission. It is equipped with an idle fuel adjusting needle with a Ilrniter cap, which allows some adjustment within the limits allowed by the cap. Do not attempt to remove the limiter cap. The limiter cap cannot be removed without breaking the adjusting needle.

1.Be sure you have a clean air filter and the throttle control cable is adjusted properly (see above).

2.Start engine and atlow to warm for five minutes. Make adjustments with engine running and shift]motion control lever in neutral (N) position.

3.idle soeed setting - With throttle control lever in slow position, engine should idle at 1750 RPM. If engine idles too slow or fast, turn idle speed adjusting screw in or out until correct idle is attained.

4.Idle fuel needle setting - With throttle control lever in slow position, turn idle fuel adjustment needle In (clockwise) until engine begins to die and then turn out (counterclockwise) until engine runs rough. Turn needle to a point midway between those two positions.

5.Recheck idle speed. Readjust if necessary.

ACCELERATION TEST -

6. Move throttle control lever from slow to

fast position. If engine hesitates or dies, turn idle fuel adjusting needle out (counterclockwise) 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 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-governedhigh speed needs adjusting, contact a Sears or other qualified service center, which has proper equipment and experience to make any necessary adjustments.

Idle Speed

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Contents Icraftsmawj Warranty Limited 90 DAY Warranty on BAI-FERYDo not General OperationII. Slope Operation IV. Service Mower blades are sharp and can cutCancer and birth defects or other repro- ductive harm 3ROUND Speed Forward Battery AMP/HR MIN. CCAAPI-SF-SJ 3RDOpeShIIl.e To Removetractor from Carton Unpack Carton Tools Required For AssemblyBefore Removingtractor from Skid Install Seat Check Deck Levelness To Convertto Bagging or DischargingChecktire Pressure Check for Proper Position of ALL B EltsEHO,NEOHENG,HEOFFOILPeESSUnEL,ONTSOOVI,.MP Ammeter Our tractors conform to the safety standardsKnowyourtractor Ground Drive Howto Useyourtractor To SET Parking BrakeMower Blades EngineTo Operate on Hills To Adjust Gauge WheelsTo Operate Mower To TransportADD Gasoline Towing Carts and Other AttachmentsBefore Starting the Engine Check Engine OIL Level To Start EngineLeft hand side of mower should be used for trimming Level Mower Housing Service and Adjustments section of thisMowing Tips Tion of clippings and more uniform cuttingSection General RecommendationsBefore Each USE Tires TractorBrake Operation Operator Presence SystemBelts Clean AIR ScreenClean AIR INTAKE/COOLING Areas Spark Plugs AIR FilterMuffler Engine OIL FilterTractor To Remove Mower CleaningTo Install Mower To Replace Mower Blade Drive Belt To Level Mower HousingSIDE-TO-SIDE Adjustment Belt RemovalTransaxle Gear Shift Lever Neutral Adjustment Belt InstallationTo Adjust Brake To Replace Motion Drive BeltTo Remove Wheel for Repairs To Adjust Steering Wheel ALIGN- MentFront Wheel TOE-IN/CAMBER To AI-IACHJUMPER CablesInterlocks and Relays To Adjust Throfflecontrol CableTo Replace Headlight Bulb To Replace FuseTo Adjust Carburetor Acceleration TestCylinders Engine Fuel SystemEngine OIL OtherCorrection ProblemCause Troubleshooting Chart Problem Cause Troubleshooting Chart Problem Cause Correction RRACTOR - Model Number SchmatcTRACTOR- -MODEL Number Tractor - Model Number ElectricalTRACTOR- -MODEL Number Chassis and Enclosures TRACTOR-- Model Number 917.272410 Chassis and Enclosures KEY Part DescriptionTRACTOR--MODEL Number Ground Drive TRACTOR-- Model Number Ground Drive X .1845/1865TRACTOR--MODELNUMBER917.272410 Steeringassembly TRACTORMODELNUMBER917--.272410 Steeringassembly KEY Part NO. NO. DescriptionSpark Arrester Optional EquipmentTRACTOR- Model Number TRACTOR--MODEL Number Seat Assembly KEY Part NO. NO.DESCRIPONWheels &TIRES TRACTOR-- Model NumberDecals TRACTOR--MODELNUMBER917.272410 Liftassembly TRACTOR-- Model Number Lift Assembly TRACTORMODELNUMBER917--.272410 Mowerdeck Tractor --MODEL Number 917,272410 Mowerdeck TRACTOR-- MODELNUMBER917.272410 PEERLESSTRANSAXLE- Model NUMBER206-545CORing Crankcase I CARTER-MOTEUR Crankcase KEY Part NO. no Description RamBlower Housing and Baffles AIR INTAKE/FILTRATION KEY Part Description NO. no KEY Part NO. no DescriptionNot Illustrated OIL PAN / Lubrication Starting System KEY Part NO, noItl Fuel System UEL DE LE SystimeExhaust KEY Part NO. no Description Fuel System KEY Part NO. noCrankshaft KEY Part NO. no Page Guideth Only Ride UP and Down Hill Not Across HillSighting Anyme,ctyorrt U.SAiy Part

272, 410 specifications

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