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What are the common problems with Craftsman lawn mowers?
Common problems on a Craftsman walk-behind mower like model 917377552 are no-start conditions (fuel, spark, air), rough running (dirty carburetor or stale gas), poor cutting (dull/bent blade or blade adapter wear), and self-propel issues (worn drive belt or drive control). Use the parts list for this model to match fixes to the right components.
Most common symptoms and what usually causes them
- Won’t start or starts then dies: old fuel, clogged carburetor, dirty air filter, fouled spark plug
- Runs rough or surges: partially clogged carburetor jets, water in fuel, restricted airflow
- Hard to pull starter rope: blade obstruction, bent blade, debris packed under deck
- Cuts unevenly or leaves strips: dull blade, blade installed upside down, deck packed with wet grass
- Self-propel won’t move or slips: worn/stretching belt, drive control out of adjustment, worn drive gears
Quick checks we recommend first (fast, high-impact)
- Drain old gas and refill with fresh fuel (especially after storage).
- Check the spark plug condition and gap; replace if fouled.
- Clean or replace the air filter.
- Tip the mower only the safe direction for your engine style (avoid flooding the carburetor).
- Inspect under the deck for packed grass and blade damage (disconnect the spark plug wire first).
Parts that commonly solve these issues on model 917377552
If your symptoms match, these model-compatible parts are common fixes:
- Cutting performance: lawn mower mulching blade 532406713, lawn mower blade adapter 581547901
- Self-propel problems: belt 532157769, control 532184588
| Symptom | Most likely area | Typical fix |
|---|---|---|
| Won’t start | Fuel or ignition | Fresh gas, carb cleaning, spark plug service |
| Poor cut quality | Blade system | Sharpen/replace blade; check adapter |
| Won’t self-propel | Drive system | Replace belt; inspect drive control |
Why it matters
Catching small issues early (stale fuel, dull blade, slipping belt) prevents bigger failures like carburetor varnish buildup, excessive engine load, and premature wear on drive components.
Helpful DIY guides
- Lawn mower wont start troubleshooting video fuel ignition and compression
- Lawn mower wont move troubleshooting video motion drive failure
- How to sharpen a lawn mower blade
Last updated: February 2026
What size belt does a 42 in Craftsman lawn mower take?
A “42-inch Craftsman mower” belt size depends on whether you mean a riding mower deck belt or the self-propel drive belt on your specific mower. Your model is Craftsman 917377552 (a walk-behind mower), and it uses a self-propel drive belt, not a 42-inch deck belt; match the belt by model to avoid length and width mistakes.
Belt sizing: riding mower vs walk-behind
A 42-inch deck belt is for many riding mowers with a 42-inch cutting deck. A walk-behind mower like Craftsman 917377552 uses a drive belt for the transmission and wheels.
- Riding mower (42-inch deck): deck drive belt (varies by deck and idler layout)
- Walk-behind mower (917377552): self-propel drive belt (model-specific)
- Belt length can differ even when the deck width is the same
- Belt width and profile (V-belt style) must match the pulleys
The correct belt for Craftsman 917377552
For this Craftsman walk-behind mower, use the model-matched drive belt listed for 917377552: belt 532157769.
Quick check table
| What you have | Typical belt you need | How to confirm |
|---|---|---|
| 42-inch riding mower deck | Deck belt (often around 95 to 100 inches long) | Check the riding mower model number and deck model tag |
| Craftsman 917377552 walk-behind | Self-propel drive belt | Use the belt listed for model 917377552 |
Why it matters
Using the wrong belt size can cause slipping, poor self-propel speed, premature belt wear, or the belt jumping off the engine pulley. Matching by model keeps the pulley fit and tension correct.
Helpful tips when replacing the belt
- Disconnect the spark plug wire before working near the blade or belt area
- Inspect the engine pulley and belt guides for bends or damage
- Check for worn drive components that can mimic a “bad belt” (pinion gear, control cable, wheel gear)
- After installation, verify the drive engages smoothly and releases fully
If you’re troubleshooting a mower that will not self-propel, our lawn mower wont move troubleshooting video motion drive failure guide walks through the common drive system checks.
Last updated: February 2026
What is the average lifespan of 917377552?
A Craftsman rotary lawn mower like model 917377552 typically lasts 8 to 12 years with normal residential use and routine maintenance (cleaning, blade care, and seasonal tune-ups). Lifespan is driven more by upkeep and storage than by hours alone.
Typical lifespan by use and care
- Light use + stored indoors: 10 to 12 years
- Average weekly mowing: 8 to 10 years
- Heavy use or poor storage: 5 to 8 years
- Deck and drive system condition often determines whether it is worth repairing.
| What wears first | What you notice | What usually helps |
|---|---|---|
| Blade and blade mount | Ragged cut, vibration | Sharpen/replace blade; inspect adapter |
| Drive belt and gears | Weak self-propel, slipping | Replace belt; check drive gears |
| Wheels and bearings | Wobble, uneven tracking | Replace wheel; inspect bearings |
| Engine tune-up items | Hard starting, surging | Tune-up and fresh fuel practices |
Maintenance that extends life the most
- Change oil on schedule and keep the oil at the correct level.
- Use fresh fuel; do not store fuel in the tank over the off-season.
- Clean grass buildup from the underside of the deck after mowing.
- Keep the blade sharp and balanced; replace if bent.
- Check self-propel components for wear and keep fasteners tight.
Parts that commonly affect longevity on this model
Replacing worn wear-items on time prevents bigger failures (like deck damage or drive system wear). These are common examples for model 917377552:
- Lawn mower mulching blade 532406713 (cut quality and vibration control)
- Belt 532157769 (self-propel drive performance)
- Lawn mower wheel 532180552 (tracking and height consistency)
- Briggs & statton tune-up kit 5140B (starting and running quality)
Why it matters
Once a mower starts vibrating, cutting unevenly, or losing drive, wear accelerates quickly. Addressing the blade, belt, and wheel system early usually adds years of reliable service and keeps the engine from working harder than it should.
Last updated: March 2026
