Crafstman 917.25581 - User Manual

Questions and Answers

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William ClarkAug 19, 2025
Why my Craftsman Lawn Mower will not start?
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  Nicole HallAug 19, 2025
  If your Craftsman Lawn Mower won't start, it might be out of fuel. Refill the fuel tank. If that's not the case, the engine may not be choked properly; refer to the 'TO START ENGINE' section for instructions. It's also possible the engine is flooded, so wait several minutes before trying again. Other potential causes include a bad spark plug (replace it), a dirty air filter (clean or replace it), a dirty fuel filter (replace it), or water in the fuel (empty the fuel tank and carburetor, refill with fresh gasoline, and replace the fuel filter). Also, check for loose or damaged wiring.
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keith20Aug 21, 2025
How to fix hard start on Craftsman Lawn Mower?
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  Patricia FrancoAug 21, 2025
  If your Craftsman Lawn Mower is hard to start, the air filter might be dirty, so clean or replace it. The spark plug could be bad, so replace it. If the battery is weak or dead, recharge or replace it. A dirty fuel filter can also cause this issue, so replace it. Stale or dirty fuel is another possibility; empty the fuel tank and refill it with fresh, clean gasoline. Finally, check for loose or damaged wiring.
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Olivia GloverAug 23, 2025
What to do if Craftsman Lawn Mower engine will not turn over?
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  Ms. Monica WallaceAug 25, 2025
  If the engine of your Craftsman Lawn Mower won't turn over, make sure the clutch/brake pedal is depressed and the attachment clutch is disengaged. A weak or dead battery could also be the cause, so recharge or replace it. Check for a blown fuse and replace it if necessary. Corroded battery terminals can prevent starting, so clean them. Inspect all wiring for looseness or damage. Finally, check or replace the ignition switch.
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Gary HowellAug 26, 2025
Why Craftsman Lawn Mower engine clicks but will not start?
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  laura44Aug 26, 2025
  If your Craftsman Lawn Mower engine clicks but doesn't start, the battery might be weak or dead, so recharge or replace it. Also, check for corroded battery terminals and clean them. Inspect all wiring for looseness or damage. Finally, check or replace the solenoid or starter.
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Kathryn MorrisonAug 28, 2025
Why Craftsman Lawn Mower has poor cut - uneven cutting?
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  Jonathan FosterAug 28, 2025
  If your Craftsman Lawn Mower is providing a poor, uneven cut, the blade might be worn, bent, or loose; replace the blade and tighten the blade bolt. Ensure the mower deck is level. Clean any buildup of grass, leaves, and trash under the mower housing. Clean around mandrels to open vent holes.
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Tammy ThomasSep 1, 2025
Why Craftsman Lawn Mower has poor grass discharge?
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  Cassandra ColeSep 1, 2025
  For poor grass discharge from your Craftsman Lawn Mower, ensure the engine speed isn't too slow by placing the throttle control in the 'FAST' position, and that your travel speed isn't too fast by shifting to a slower speed. Wet grass can cause this, so allow the grass to dry before mowing. Make sure the mower deck is level and check the tires for proper PSI. A worn, bent, or loose blade can also be a factor, so replace or sharpen the blade and tighten the blade bolt. Clean any buildup of grass, leaves, and trash under the mower housing. If the mower drive belt is worn, replace it. Reinstall blades with the sharp edge down, or replace with the blades listed in this manual. Finally, clean around mandrels to open vent holes.
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Christopher DavisSep 3, 2025
How to stop excessive vibration in Craftsman Lawn Mower?
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  Michael HopkinsSep 3, 2025
  Excessive vibration in your Craftsman Lawn Mower could be due to a worn, bent, or loose blade; replace the blade and tighten the blade bolt. Also, tighten any loose parts and replace any damaged parts.
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Marcus GeorgeSep 6, 2025
What to do if Craftsman Lawn Mower blades will not rotate?
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  Andrew TaylorSep 6, 2025
  If the mower blades on your Craftsman Lawn Mower won't rotate, there might be an obstruction in the clutch mechanism, so remove it. The mower drive belt could be worn or damaged, so replace it. You can also replace the idler pulley.
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Kimberly DavisSep 8, 2025
Why Craftsman Lawn Mower headlights are not working?
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  Maxwell WatsonSep 8, 2025
  If the headlights on your Craftsman Lawn Mower aren't working, first check that the light switch is 'ON'. If not, the bulb(s) or lamp(s) may be burned out, so replace them. Check or replace the light switch. Also, check the wiring and connections, and replace the fuse.
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Richard ElliottSep 12, 2025
What causes Craftsman Lawn Mower battery to not charge?
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  Thomas MossSep 12, 2025
  If the battery of your Craftsman Lawn Mower will not charge, the battery cell(s) might be bad, so replace the battery. Check and clean all connections. Replace the regulator. Replace the alternator.

Summary

Warranty

Craftsman Full Warranty

Covers non-expendable parts against defects in material or workmanship.

Warranty Service

Safety Rules

Children

Hazards to children and age limit recommendations.

General Operation

Essential safety practices for tractor operation.

Slope Operation

Critical guidelines for safe operation on slopes.

Towing

Assembly and Pre-Operation

Prepare Tractor for Use

Steps for unpacking, connecting battery, adjusting seat, and initial checks.

Operation

Operation Symbols and Controls

Basic Operation

How to start, stop, move, and operate key functions.

Service and Adjustments

Service Safety Precautions

Crucial safety precautions before service.

Mower Deck Service

Belt Replacement

Maintenance

Maintenance Schedule

Before Each Use

Engine Maintenance

Troubleshooting

Troubleshooting Chart

A guide to diagnose and correct common problems.

Crafstman 917.25581 Specifications

General

Model Number	917.25581
Category	Lawn Mower
Type	Walk-Behind
Engine Type	Gasoline
Engine	Briggs & Stratton
Engine Power	6.75 HP
Engine Displacement	190cc
Cutting Width	21 inches
Cutting Height	1.5 to 4 inches
Fuel Tank Capacity	1.6 quarts
Weight	65 lbs