Sears 917.25958 manual To Adjust Throttle Control Cable, Acceleration Test, Fig=

Page 26

RV CE AND ADJUSTMENTS

ENGINE

TO ADJUST THROTTLE CONTROL CABLE

(See Fig. 31)

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

•With engine not running, move throttle control lever from slow (_) to cheke (N) position. Slowly move lever from choke (N) to fast (-_) position_

.

Check

to see if hole in throttle lever and hole in speed

 

control

bracket are aligned.

.

If holes are not aligned, loosen cable clamp screw and

 

align the holes by inserting a pencil or a 1/4" drill bit

 

through

both holes_

°Pull throttle cable up to remove slack and tighten cable clamp screw. Remove alignment pencil or drift bit.

TO ADJUST CARBURETOR (See Fig. 32)

The carburetor has been preset at the factory and adjust- ment should not be necessary. However, minor adjust- ment may be required to compensate for differences in fuel, temperature, altitude or load. If the carburetor does need adjustment, proceed as foflows:

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 (counter- clockwise) increases the supply of fuel to the engine giving a richer fue!/air mixture.

IMPORTANT: DAMAGE TO THE NEEDLES AND THE

SEATS IN CARBURETOR MAY RESULT IF NEEDLE IS TURNED IN TOO TIGHT

NOTE: The carburetor on this engine is low emission_ It is equipped with an idle fuel adjusting needle with a iimiter 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,

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

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

oIdle speed settinq - 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.

,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 runsrough. Turn needle to a point midway between those two positions.

=Recheck idle speed_ Readjust if necessary.

ACCELERATION TEST -

•Move throttle control lever from slow (,_) to fast (,=_) position_ If engine hesitates or dies, turn idle fuel adjusting needle out (counterclockwise) 1/8 turn. Re- peat 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 OVERSPEEDINGTHEENGINEABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS IFYOUTHINKTHEENGINE-GOVERNED

HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR

NEAREST AUTHORIZED SERVICE CENTER/

DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND

EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.

CLAMP

CABLE ,_

SCREW_.._.

THROTTLE

LEVER

FIG, 31

IDLE SPEED

ADJUSTING

SCREW

IDLE FUEL//

ADJUSTING

NEEDLE

FIG= 32

26

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Contents AR8 I1. Slope Operation Safety is InvolvedII1. Children Model Maintenance AgreementLimited 90 DAY Warranty on Battery SEARS, Roebuck and CO,, 13/817WA, Hoffman ESTATES, ILIndex Performance ACCE$SORME$ and AttachmentsEngine Contents To Remove Tractor from Carton AssemblyTools Required for Assembly Unpack CartonCheck Tire Pressure HOW to SET UP Your TractorPositive terminal must be connected Check Brake SystemDischarging Install Mulcher Plate See FigsTo Convert to Bagging or FIGoChecklis T MOlOperation Choke Mower Height Differential Parking BrakeOPERATmON HOW to USE Your Tractor Mower BladesTo Operate Iviower See Fig OperationBefore Starting the Engine Check Engine OiL Level See FigMulching Mowing Tips Trash Clean After Each USEMowing Tips General Recommendatuons Lubrication ChartCustomer Responsibilities Before Each USETractor BatteryCustomer Respons BIL Tues Blade CareEngine BeltsSparkplugs Clean AIR INTAKE/COOLING AreasTo Service Cartridge AIR Filter See FigYear CleaningEngine OIL Filter See Fig IN-LINE Fuel Filter See FigLowest position To Install Mower See FigClutch SuspensionBoth Front Links Must be Equal in Length $ERVJCE AdjustmentsRecheck measurements After adjusting To Replace Mower Blade Drive Belt Service and AdjustmentsBelt Installation Belt RemovalTransaxle Shifter Linkage and AD To Adjust Steering Wheel AlignmentFront Wheel TOE-IN/CAMBER Justment See FigsTo Replace Fuse Loose or damaged wiring may cause your tractor to runTo Remove Hood and Grill Assembly To Replace Headlight BulbFIG= To Adjust Throttle Control CableAcceleration Test Trou Leshootjng Points Problem Cause CorrectionOther StorageEngune Fuel SystemService Notes

917.25958 specifications

The Sears 917.25958 represents a distinct blend of functionality and durability in the realm of lawn maintenance equipment. This lawn tractor, engineered primarily for residential use, is well-known for its ability to handle a variety of yard tasks with relative ease.

One of the main features of the Sears 917.25958 is its robust 17.5 horsepower engine. This powerful engine ensures smooth and efficient operation, enabling users to tackle both large and small lawns without any difficulty. Additionally, the engine is paired with a reliable automatic transmission system that allows for seamless shifting during operation, removing the need for manual gear changes and making it user-friendly for those who may not be experienced with traditional riding mowers.

The cutting deck is another standout characteristic of the Sears 917.25958. It boasts a 42-inch cutting width, which provides an impressive balance between maneuverability and mowing ability. The cutting deck can be adjusted for height, allowing for various grass lengths to be managed effectively, and it features mulching capabilities that recycle grass clippings back into the lawn, promoting healthy growth and reducing yard waste.

Comfort is a major consideration with the Sears 917.25958. It is designed with a high-back seat that provides added support during extended use, along with ergonomic controls that minimize strain on the operator. The steering system is responsive and offers high maneuverability, making it easy to navigate around obstacles like trees and flower beds.

In terms of technology, the Sears 917.25958 incorporates a cutting-edge ignition system for reliable starting in various weather conditions. Safety features include a blade brake that engages when the operator leaves the seat, ensuring that the blades stop spinning to prevent accidents.

In summary, the Sears 917.25958 combines power, ease of use, and comfort, making it an excellent choice for homeowners looking for a dependable lawn tractor. Its thoughtful design, versatile mowing options, and safety features come together to create a highly efficient tool that stands the test of time in the realm of outdoor maintenance. Whether for routine mowing or more intensive yard work, this tractor is equipped to handle the job with confidence and reliability.
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