Owner’s manual
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What are the common problems with Craftsman lawn mowers?
Common problems on the Craftsman 917377942 gas walk-behind mower include loss of power, uneven cutting, excessive vibration, a starter rope that’s hard to pull, poor bagging, hard pushing, and loss of drive or slow drive speed. Our owner's manual troubleshooting chart points you to the most likely causes and fixes.
- Use fresh gasoline; old fuel is a top cause of hard starting and stalling.
- Check and clean or replace the air filter if the engine runs rough or lacks power.
- Inspect the blade for wear, bends, or looseness; vibration and poor cut quality often start here.
- Clean packed grass and debris from under the deck; buildup can cause power loss and uneven cutting.
- Verify wheel height settings match side-to-side for an even cut.
- If self-propelled drive slows or slips, inspect the drive control parts and cable adjustment.
| Symptom | Most common causes | What to do first |
|---|---|---|
| Loss of power | Cutting too much grass, dirty air filter, grass buildup under deck, too much oil, walking speed too fast | Raise cutting height, clean deck, check air filter and oil level |
| Uneven cut | Worn/bent/loose blade, uneven wheel heights, deck buildup | Level wheel heights, clean deck, inspect blade |
| Excessive vibration | Worn/bent/loose blade, bent crankshaft | Stop mowing, inspect blade and adapter |
| Starter rope hard to pull | Blade dragging in grass, brake engaged, possible internal binding | Tip mower safely, clear debris, check blade area |
| Loss of drive / slow drive | Drive control/cable issues, pulley wear | Check control lever and cable operation |
If you’re diagnosing drive issues or control problems on model 917377942, these model-matched parts are commonly involved:
- Lawn mower drive control lever 532425662 (drive engagement feel and travel)
- Husqvarna lawn mower drive control cable 532197011 (slack, stretch, or binding)
- Husqvarna lawn mower idler pulley 532166043 (belt tension and drive speed)
- Lawn mower blade adapter 532186766 (vibration, blade fit, hard-to-pull rope)
- Husqvarna lawn mower 21-in deck 3-in-1 blade 532189028 (cut quality and vibration)
Most “mower problems” trace back to airflow (air filter), fuel quality, or drag from a dirty deck or damaged blade. Fixing those basics first protects the engine, improves cut quality, and prevents drive components from wearing out early.
Last updated: February 2026
What kind of gas do I put in my push lawn mower?
For the Craftsman 917377942 gas walk-behind mower, we recommend unleaded regular gasoline; the owner’s manual lists the fuel type as unleaded regular with a 1.0 quart tank capacity. See the fuel and safety details in the 917377942 owner's manual.
Use fresh fuel and keep it clean so the carburetor and fuel system stay reliable.
- Use unleaded regular gasoline
- Use fresh gas (old fuel can cause hard starting and rough running)
- Keep the gas can clean and replace it if it starts to rust
- Avoid storing gasoline from one season to the next
- Never refuel near sparks or open flame; let the engine cool first
| Fuel question | Best practice for this mower |
|---|---|
| Octane grade | Regular unleaded is the right choice |
| Ethanol blends | E10 is commonly used with regular unleaded; use fresh fuel and do not let it sit |
| How much to add | Fill as needed; tank capacity is 1.0 quart |
Using the correct fuel and keeping it fresh helps prevent stale-fuel starting problems, reduces deposits in the fuel system, and supports consistent power when mowing.
If you are putting the mower away for a while, follow the storage guidance in the manual (including not storing the mower indoors with gasoline in the tank where fumes could reach a flame or spark).
Last updated: February 2026
How do I find the model number on my 917377942?
The model number for your Craftsman walk-behind mower is printed on the mower’s model and serial number label; for this unit it’s 917.377942 (often shown as 917377942 online). Use the label number to match the correct diagrams, manual, and replacement parts.
Check these common spots first (wipe off grass and dirt so the label is readable):
- On the rear of the deck near the discharge opening or rear door area
- On top of the deck near the engine mounting area
- Near the rear wheel height adjuster area
- On the handle support/bracket area close to the deck
In the documentation, the mower is listed as Model No. 917.377942. You may see it in a few formats:
| Where you see it | Example | What it means |
|---|---|---|
| Product label/manual | 917.377942 | Full model number format |
| Parts lookup/online | 917377942 | Same model number without the dot |
| Model/serial tag | Model + Serial | Serial is for manufacturing info, model is for parts |
Using the exact model number matters because small design changes affect items like the drive control, wheels, and blade hardware.
- Copy the model number exactly from the label (including any dots)
- Use the model number to confirm the correct manual and diagrams in the 917377942 owner's manual
- If the label is damaged, compare your mower’s assemblies to the diagrams (handle, grass bag door, drive control)
- Keep the serial number for reference, but use the model number for parts matching
Craftsman model numbers identify the exact deck, drive system, and hardware used on your mower. That is what ensures parts like a blade adapter, drive control cable, or wheel assembly match and fit correctly.
Last updated: March 2026
