Craftsman 917.270822 To Adjust Choke Control, To Adjust Carburetor, Preliminary SEI-FING

Page 26

TOADJUSTCHOKECONTROL

The chokecontrolhas been preset at the

factory and adjustment should not be necessary. Check adjustment as de- scribed below before loosening cable. If

adjustment is necessary, proceed as fol- lows:

TO ADJUST CHOKE CONTROL

The choke control has been preset at the

factory and adjustment should not be necessary. Check adjustment as de- scribed below before loosening cable. If

adjustment is necessary, proceed as fol- lows:

•With engine not running, move choke control (located on dash panel) to full choke position.

•Remove air cleaner cover, filter and

cartridge plate to expose carburetor choke (see AIR FILTER" in the Mainte- nance section of this manual).

•Choke should be closed, If it is not, loosen casing clamp screw and move choke cable until choke is completely

closed. Tighten casing clamp screw se- curely.

•Reassemble air cleaner.

Clamp Screw-__

Quarter _,,,f\ \ )

Choke

Lever

Casing

Screw

TO ADJUST CARBURETOR

The carburetor has been preset at the fac-

tory and adjustment should not be neces- sary. However, minor adjustment may be required to compensate for differences in fuel, temperature, altitude or load. If the carburetor does need adjustment, pro- ceed as follows:

In general, turning the mixture screw in (clockwise) decreases the supply of fuel

PRELIMINARY SEI-FING -

•Be sure you have a clean air filter, and the throttle control cable and choke are

adjusted properly (see above).

•With engine off turn idle mixture screw in (clockwise) closing it finger tight and

then turn out (counterclockwise) 1-1/4to 1-1/2turns.

FINAL SE1-FING -

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

engine running and shift/motion control lever in neutral (N) position.

•With throttle control lever in slow posi- tion, hold throttle lever against idle

speed screw and adjust idle speed screw to obtain 1200 to 1400 RPM.

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

•Continue to hold throttle lever against

idle speed screw and adjust idle speed screw to obtain 900 to 1200 RPM. Re-

lease throttle lever.

ACCELERATION TEST -

•Move throttle control lever from slow to

fast position. If engine hesitates or dies, turn idle mixture screw out (counter- clockwise) 1/8 turn. Repeat test and continue to adjust, if necessary, until en-

gine accelerates smoothly.

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

IMPORTANT: Never tamper with the en- gine governor, which is factory set for proper engine speed. Overspeeding the engine above the factory high speed set- ting can be dangerous. If you think the en- gine-governedhigh speed needs adjust-

=ng, contactyour nearest authorized ser-

vice center/department, which has proper equipment and experience to make any necessary adjustments.

ldle Speed

Screw

__le

Mixture Screw

_"'Throttle Lever

to the engine giving a leaner fuel/air mix- ture. Turningthe m_xture screw out

(counterclockwise) increases the supply of fuel to the engine giving a richer fuel/air

mixture.

IMPORTANT: Damage to the needles and the seats in carburetor may result if screw

is turned in too tight.

26

ldle Speed

Screw

Idle Mixture

Screw

_" Throttle Lever

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Contents Pm, Mon Sat SearsHelp Line Limited 90 DAY Warranty on BAI-FERY Children ServiceSlope Operation Do notSafety is Involved Birth defects, or other reproductive harmCustomer Responsibilities Maintenance AgreementProduct Specifications Batiery16 x Hex Bolt Lackwasher 3/8 Large Flat Washer 16 x 3/4 x 16 Gauge LockParts Bag Mulcber Plate VideoSteering Before Rolung Tractor OFF Skid Howto SET Upyour TractorTools Required For Assembly AI-IACHSTEERING WheelTo Drive Tractor OFF Skid Install SeatInstall Mulcher Plate Check Tire Pressure To Convert to Bagging or DischargingCheck Brake System Check Deck LevelnessH L Know Your Tractor Knob Brake Motion Freewheel Control LeverHOW to USE Your Tractor To Operate on Hills To Adjust Gauge WheelsTo Operate Mower To TransportADD Gasoline Efore Starting the EngineCheck Engine OIL Level To Start EnginePurge Transmission Coldweatherstarting 50 Fand BelowAutomatic Transmission WARM-UP Mowing TipsMulching Mowing Tips General Recommendations Lubrication ChartMaintenance Schedule Before Each USEOperator Presence System Brake OperationTires Blade CareTransaxle Cooling Clean AIR ScreenBelts Transaxle Pump FluidCleaning To Remove Mower To Level Mower HousingTo Install Mower To Replace Mower Blade Drive To Adjust BrakeEqual in length. Both links should be Belt RemovalTo Start Engine with Aweak Battery To Replace Headlight Bulb To Adjust Throttle Control CableTo Remove Hood and Grill Assembly Interlocks and RelaysPreliminary SEI-FING To Adjust Choke ControlTo Adjust Carburetor Final SE1-FINGEngine CylindersTroubleshooting Chart Problem CausecorrectionProblemcause CorrectionProblem TroubleshootingChart Cause Loss of driveEo IJ Tractor Model NumberElectrical Tractor - Model Number4799J Tractor - Model NumberElectrical 166180 Fuse 73510400 NUtKeps Hex 1/4-20 Unc 14,5491Tractor - Model Number Chassis and Enclosures KEY Part Description Tractor - Model Number Ground Drive Tractor - Model Number 917,270822 Ground Drive Tractor --MODEL Number Steering Assembly Tractor - Model Number Steering Assembly Spark Arrester EngineOptional Equipment Tractor - Model Number Engine KEY Part Tractor - Model Number Seat AssemblyKEY Part NO. no Part KEY Description Wheels & Tires KEYTractor - Model Number Lift Assembly Nut, Special Mower Deck 164961 BracketAssembly,Sway Bar Spring,Torsion BrakesBracketAssembly,Sway Bar 155046Tractor - Model Number Hydro Gear Transaxle - Model Number DifferentialAssembly Housing,LowerAssembly,Upper Housing Ring,Wire Retaining 142961 Seal 75 x 1.25 x Ring, Retaining25 J 601 534 642 643 523 535615 24 634A 552 525 i 284A 1611121 13581861 51A803 653 209A 414 207 y 307 592 8O2801 783 305 573 308 8A5729 10A 304 881Label Kiti 3O6 307270884 Gasket, intake Manifold Piston Assembly, Standard Size497074 Bushing Mounting592 92278 332 230674 Nut, Hex 803 497604 Housing,Starter 333 394891Wire, Stop 851 493880 615APage Page Page Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Sighting Guide£ S
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