Craftsman 917.271653 Engine, To Adjust Throttle Control Cable, Holes a Throttle, Final SEnING

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ENGINE

Maintenance, repair, or replacement of the emission control devices and systems, which are being done at the customers expense, may be performed by any non-mad engine repair establishment or individual. Warranty repairs must be performed by an authorized engine manufacturer's service outlet.

TO ADJUST THROTTLE CONTROL CABLE

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:

1.With engine not running, move throttle control lever from slow to choke position. Slowly move lever from choke to fast position.

2.Check that holes "A" in govemor control lever and hole in governor plate line-up. If holes "A" are not aligned, loosen clamp screw and move throttle cable until holes are aligned. Tighten clamp screw securely.

GovernorGovernor

LeverPlate

Holes "A"

Throttle

ScrewCable

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 lim_r cap. The limiter cap cannot be

removed without breaking the adjusting needle.

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 idle mixture valve in (clockwise) decreases the supply of fuel to the engine giving a leaner fueVair mixture. Turning the idle mixture valve out (counter-

cloc_vise.).increases the supply of fuel to the engine gswng a richer fueVair mixture.

IMPORTANT: Damage to the needle valve and the seat in carburetormay resultif screw isturned intoo tight.

PRELIMINARY SE'I-I'ING-

1.Air cleaner assembly must be assembled to the carburetor when making carburetor adjustments.

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

FINAL SE'n'ING-

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 position. With finger, rotate and hold throttle lever against idle speed screw.

Turn idle speed screw to attain 1750 RPM.

3.While still holding throttle lever against idle speed screw, turn idle mixture valve full travel clockwise then counterclock-

wise until engine runs rough. Turn valve to a point midway between those two positions. Release throttle lever.

ACCELERATION TEST -

4.Move throttle controllever from slow to fast position. If engine hesitates or dies, turn idle mixture valve out (counterclock- wise) 1/8 turn. Repeat test and continue to adjust, if necessary, until engine

accelerates smoothly.

High speed stop is factory adjusted. Do not adjust or 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 experience to make any necessary adjustments.

Idle Speed [-]-_

_ Throttle

Screw__

Idle Mixture Valve

With Limiter

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Contents Sears Craftsman Help Line Am 5 pro, Mon- SatLimited Warranty on Craftsman Riding Equipment Limited Warranty on BatteryGeneral Operation I1. Slope OperationDo not IV. ServiceMow up and down slopes, not across Page Customer Responsibilities Product SpecificationsRepair Agreement SAESeat Steering Wheel Hex Bolt Steering3/8-16x Wheel InsertLocknut 1/2-20 17/32 x 1-3/16 x 12 GaugeBefore Removing Tractor from Skid Tools Required for AssemblyTo Remove Tractor from Carton Install Seat Adjust seat before tightening adjustment knobCheck Tire Pressure Install Mulcher PlateTo Convert to Bagging or Discharging Check Deck LevelnessH L Clutch/Brake Indicator Pedal KnowyourtractorTo USE Throttle Control Howto UseyourtractorTo SET Parking Brake To Move Forward and BackwardTo Transport To Operate MowerTo Operate On Hills Towing Carts and Other ATTACH- MentsTo Start Engine Adjustments section of this manualADD Gasoline Mowing Tips Mulching Mowing TipsGeneral Recommendations Lubrication ChartBeforeeachuse SectionTires BatteryBrake Operation Operator Presence SystemBelts EngineEngine Cooling Fins Clean AIR ScreenCleaning MufflerTo Remove Mower Service or AdjustmentsTo Install Mower Both SidesFRONT-TO-BACK Adjustment To Level Mower HousingSIDE-TO-SIDE Adjustment To Replace Mower Blade Drive BeltBelt Removal To Adjust BrakeTo Replace Motion Drive Belt Front Wheel TOE-IN/CAMBER Transaxle Gear Shift Lever Neutral AdjustmentTo Adjust Steering Wheel Alignment To Remove Wheel for RepairsTo Replace Headlight Bulb Replacing BatteryTo Remove Hood and Grill Assembly Interlocks and RelaysEngine To Adjust Throttle Control CableTo Adjust Carburetor Holes a ThrottleCylinders Fuel SystemEngineoil OtherCause Troubleshooting ChartProblem CorrectionTroubleshooting Chart Problem Cause CorreconUnder Problem Cause CorrectionLevel Improper blades usedTractor - Model Number Schematic Electrical Tractor - Model Number Electrical KEY Part DescriptionTractor - Model Number Chassis and Enclosures Tractor -- Model Number 917.271653 Chassisand Enclosures Tractor - Model Number Ground Drive Tractor - Model NUM BER Tractor - Model Number 917.271653 Steering Assembly Tractor - Model Number Steering Assembly 160367Spark Arrester Tractor - Model NumberEngine Optional Equipment KEY PartKEY Part NO. NO. Description Tractor - Model Number Lift Assembly2O2O Tractor --MODEL Number Seat Assembly 14 72050412 Bolt Rdhd Sht Nk 1/4-20x1-1/2Tractor - Model Number Decals Tractor - Model Number Mower Deck Tractor --MODEL Number Mower Deck 721406145950 Part KEY Description 757 883 Label KIT Ownersmanual 127 186 1421 202 562 267 711 467971 I601240 176 404@ 276 11275803 LABEL-EMISSIONSEngine Gasket SET Carburetor Overhaul KITValve Gasket SET 121A Carburetor Overhaul KITAir Cleaner 729 Page Suggested Guide for Sighting Slopes for Safe Operation Anytime, day or night A. and Canada