Craftsman 917.273401 To Adjustthrottle Control Cable, To Adjust Carburetor, Preliminary Setting

Page 28

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-road engine repair establishment or individual. Warranty repairs must be performed by an authorized engine manufacturer's service outlet.

TO ADJUSTTHROTTLE CONTROL CABLE

The throttle control has been preset at the factory and adjustment should not be nec- essary. Check adjustment as described below before loosening cable. If adjust- ment is necessary, proceed as follows:

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

2.Check that 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 holes are aligned. Tighten clamp screw securely.

Governor Control Lever Governor Control Plate

Holes

 

 

"A"

Clamp Screw

Cable

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. 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 differ- ences 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 mix- ture. Turning the idle mixture valve out (counterclockwise) 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 -

1.Air cleaner assembly must be assem- bled to the carburetor when making carburetor adjustments.

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

FINAL SETTING -(See "TO ADJUST THROTTLE CONTROL CABLE" in this

section of the manual.)

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- tion. 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 coun- terclockwise until engine runs rough.

Turn 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 or damage may result. IMPORTANT: Never tamper with the engine governor, which is factory set for proper engine speed. Overspeed- ing 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

Lever

Idle Mixture

Valve with

Limiter

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Contents Icrrftsmrni Limited Warranty on Craftsman Riding Equipment Limited Warranty on BatteryGeneral Operation II. Slope OperationDo not IV. ServiceIII. Children Page Sears Installation Service Customer ResponsibilitiesRepair Protection Agreements HomeSteering Wheel Slope SheetTools Required for Assembly Install SeatTo Remove Tractor from Before Removing Tractor from Skid Attach Steering WheelCheck Battery Install Mulcher Plate Check Deck LevelnessDischarging Check for Proper Position of ALL BeltsH L I,,I Know Your Tractor AmmeterLift Lever Plunger AttachmentHOW to USE Your Tractor To SET Parking BrakeGround Drive EngineTo Operate Mower To Operate on HillsTransmission Engaged Transmission Disengaged Before Starting the EngineTo Start Engine ADD GasolineAutomatic Transmission Warm UP Purge Transmission Mowing TipsMulching Mowing Tips Before Each USE General RecommendationsCheck tire pressure Battery TractorOperator Presence System Blade RemovalTransaxle Pump Fluid EngineLubrication AIR Filter Clean AIR ScreenEngine OIL Filter Cleaning MufflerSpark Plugs Protect painted surfaces with auto- motive type waxService or Adjustments To Install MowerTractor To Remove MowerSIDE-TO-SIDE Adjustment To Level Mower HousingBelt Removal Beltinstallation Belt InstallationTransaxle Motion Control LE VER Neutral Adjustment Transmission Removal ReplacementTo Adjust Steering Wheel Align Ment To Start Engine with a Weak BAT- TeryReplacing Battery To Attach Jumper CablesInterlocks and Relays To Replace FuseTo Adjust Carburetor To Adjustthrottle Control CablePreliminary Setting Battery Fuel SystemEngine OIL CylindersProblem Troubleshooting ChartCause Correction Cause Mower blades willNot rotate Poor grassBattery Will Not When turningHeadlights Not WorkingTractor - Model Number Schematic Fuel SHUT-OFF SolenoidTractor - Model Number Electrical KEY Part Description Tractor - Model Number 917.273401 Chassis and Enclosures Tractor - Model Number Chassis and Enclosures 208Tractor - Model Number Ground Drive KEY Part Description Tractor - Model Number 917.273401 Steering Assembly Tractor - Model Number 917.273401 Steeringassembly Tractor -- Model Number Engine Tractor -- Model Number 917.273401 Seat Assembly X20 Tractor -- Model Number DecalsTractor -- Model Number Lift Assembly 2O2OTractor - Model Number Mower Deck Tractor - Model Number Mowerdeck 44B 150 115 32 49 106 65 Li 114,i 127 208 183 T85 182 4371D .078W 434 13J OZZCARBURETOROASKETSET121AOVERHAUL KIT Intake 146 691639 Key-Timing 691279 309 693551 Motor-Starter 868 690968 Suggested Guide for Sighting Slopes for Safe Operation Your Home

917.273401 specifications

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