Craftsman 917.25736 owner manual Engine, To Adjust Throttle Control Cable See Fig, Final Setting

Page 25

SERVICE AND

ENGINE

TO ADJUST THROTTLE CONTROL CABLE (See Fig. 36)

The throttle control has been preset at the factory and ad- ustment should not be necessary Check ad ustment as described below before oosen ng cab e fad ustment s necessary, proceed as follows:

With engine not running, move throttle control lever from "SLOW" to "CHOKE" position Slowly move lever from "CHOKE" to "FAST" position

Check that hole 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

TO ADJUST CARBURETOR (See Fig. 36)

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

In general, turning the mixture screws in (clockwise) de- creases the supply of fuel to the engine giving a leaner fuel/ air mixture Turning the mixture screws out (counterclock- wise) 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 SCREWS ARE TURNED IN TOO TIGHT

PRELIMINARY SETTING -

Air cleaner assembly must be assembled to the carbu- retor when making carburetor adjustments

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

With engine off turn high speed mixture screw in (clockwise) closing it finger tight and then turn out (counterclockwise) 1-1/4 to 1-1/2 turns

Turn idle mixture screw in (clockwise) closing finger tight and then turn out (counterclockwise) 1 turn

FINAL SETTING -

Start engine and allow to warm for five minutes. Make final ad ustments with engine running and shift/motion centre ever n 'NEUTRAL" post on

With throttIe control lever in "FAST" position, turn high speed mixture screw in (clockwise) until engine begins to die then turn out (counterclockwise) until engine runs rough Turn screw to a point midway between those two positions

With throttle control lever in "SLOW" position, turn idle mixture screw in (clockwise) until engine begins to die and then turn out (counterclockwise) until engine runs rough Turn screw to a point midway between those two positions

ADJUSTMENTS

GOVERNED IDLE -

Move throttle control lever to "SLOW" position. With finger, hold throttle shaft in closed position against throttle stop (counterclockwise). Turn idle speed screw to attain 1550 RPM. Release throttle shaft. Move throttle control lever to attain 1750 RPM. Turn governor idle screw until it contacts governor control lever.

ACCELERATION TEST.

Move throttle control lever from "SLOW" to "FAST"

position. If engine hesitates or dies, turn idle mixture screw out (counterclockwise) 118 turn. Repeat test and continue to adjust, if necessary, until engine accel- erates 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. OVER-

SPEEDING THE ENGINE ABOVE THE

FACTORY HIGH SPEED SE_ING CAN

BE DANGEROUS IF YOU THINK THE

ENGINE-GOVERNED HIGH SPEED

NEEDS ADJUSTING, CONTACT YOUR

NEAREST AUTHORIZED SERVICE

CENTER, WHICH HAS PROPER EQUIP-

MENTAND EXPERIENCETO MAKE ANY NECESSARY ADJUSTMENTS

IDLE SPEED

SCREWTHROTTLE

\

IDLE MIXTURE

SCREW

THROTTLE

CABLE

RNOR

LEVERHOLES'A"

HIGH SPEED

MIXTURE SCREWGOVERNOR

CONTROL

PLATE

FIG. 36

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Contents Automatic Hydrostatic Lawn Tractor Preparation Maintenance and StorageOperation Product Specifications Maintenance AgreementFull 90 DAY Warranty on Battery Customer ResponsibilitiesIndex Performance EngineContents of Hardware Pack Tools Required for Assembly AssemblyTo Remove Unit from Carton Before Rolling Unit OFF SkidPrepare Battery See Fig HOW to SET UP Your TractorCheck for Proper Position of ALL Belts Check Brake SystemInstall Battery See Figs ChecklistKnow Your Tractor OperatuoTo SET Parking Brake See Fig HOW to USE Your TractorStopping See Fig To USE Throttle Control See FigTo Operate Mower See Fig OperationImportant the Motioncontrollever does Check Engine OIL Level See FigMowing Tips General Recommendations MaintenanceBefore Each USE LubricationTractor Battery See FigBlade Care WellRecommended SAE Viscosity Grades Transaxle Pump Fluid Level See FigsAIR Screen See Fig AIR Filter See FigMuffler Cleaning Servuce and AdjustmentsAINTENANC£ Spark Plugs See FigTo Level Mower Housing Ervice and AdjustmentsOfcurl NUT ETo Adjust Mower Blade Drive Belt Service and AdjustmentsBelt Installation Belt RemovalTo Replace Motion Drive Belt See Figs To Adjust Brake See FigAdjustments ServiceTo Adjust Motion Control Lever See Fig To Adjust Steering Wheel AlignmentTo Remove CABLES, Reverse Order Interlocks and RelaysTo Replace Headlight Bulb To Remove Hood and Grill Assembly Servnce and AdjustmentsFinal Setting To Adjust Throttle Control Cable See FigEngine Governed IdleStorage BatteryOther Fuel SystemTroubleshootbng Pounts Problem Cause CorrectionProblem Cause Correction Troubleshooting PointsSchematic Repaur Parts KEY Part Description @12Standard Hardware - Purchase Locally =.-== Mmommmmommbmml I J J j J J J J J Repair Parts KEY Part 12 HP 38 Riding Lawn Tractor - Model Number DriveKEY Description553O C D KEY Part DescriptionTractor - Model Number 12 HP 38 Riding LawnStandard Hardware - Purchase Locally C D E REPAnR Parts C D E F G H J K L Part KEY Description16x3/4 STD541437 Nut 16UNC Part Description Repair PartsN44 Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 4751 EY Part KEY Description =IEPAIR PartsT41 Qil KEY Part NO. no DescriptionKEY Part NO. no Repair PartsLabel KIT GasketsetSlope Sheet 12,0 HP MC Electric Start 38 Mower HOW to Order Repair PartsPRINTE3 in U S

917.25736 specifications

The Craftsman 917.25736 is a standout model in the realm of lawn tractors, offering remarkable performance and versatility for homeowners with medium to large lawns. Engineered to provide an efficient mowing experience, this lawn tractor is perfect for those seeking both power and reliability.

One of the key features of the Craftsman 917.25736 is its robust engine. Equipped with a 19.5 HP Briggs & Stratton engine, this tractor offers ample power to tackle tough mowing tasks. The engine is designed for durability and efficiency, ensuring that users can depend on it for consistent performance season after season.

The cutting deck is another significant highlight of the Craftsman 917.25736. It boasts a 42-inch steel cutting deck that not only provides a wide cutting path but also enhances durability and effectiveness. The adjustable cutting height offers six different positions, allowing users to customize their mowing experience based on their lawn's specific needs.

In terms of technology, the Craftsman 917.25736 features a hydrostatic transmission that delivers smooth and seamless operation. This means users can easily control their speed without the need for manual gear shifting, making it more accessible for individuals of all skill levels. The tight turning radius also allows for better maneuverability around obstacles like trees and flower beds.

The comfort of the operator has not been overlooked in the design of the Craftsman 917.25736. It comes with a plush, high-back seat that provides ample support during long mowing sessions. Additionally, the steering wheel is ergonomically designed, making it easier to handle the tractor over extended periods.

For those concerned about the safety features, this model does not disappoint. The tractor comes with a safety ignition switch that prevents accidental starting, as well as automatic shut-off features that engage when the operator leaves the seat, enhancing its safety profile significantly.

Overall, the Craftsman 917.25736 combines powerful performance, user-friendly technology, and comfort, making it an ideal choice for homeowners looking to maintain their lawns efficiently. With its thoughtful design and reliable features, it stands as a testament to Craftsman’s commitment to quality and innovation in outdoor power equipment. Whether you are mowing a large expanse or navigating tight corners, the Craftsman 917.25736 aims to deliver a dependable and enjoyable mowing experience.
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