Owner’s manual
How long can gas sit in a gas can for a lawn mower?
For a Craftsman lawn mower like model 917376090, regular unleaded gas starts going stale in about 30 days; with a quality fuel stabilizer mixed in, most fuel stays usable for up to 6 to 8 months when stored correctly. For seasonal storage steps, follow the 917376090 owner's manual.
Recommended storage timeline
- 0 to 30 days: Use fresh fuel; keep the can tightly sealed.
- 30 to 90 days: Add fuel stabilizer (best done when the gas is fresh).
- 3 to 8 months: Stabilized fuel is typically still usable if stored cool and dry.
- Over 8 months: Replace with fresh fuel to avoid hard starting and carburetor issues.
How to store gas so it lasts longer
- Use an approved, clean gas can with a tight cap.
- Store in a cool, dry place out of direct sun.
- Keep the can as full as practical to reduce moisture absorption.
- Label the can with the purchase date and whether stabilizer was added.
- If your area offers it, non-ethanol fuel generally stores better than E10.
What the mower manual says about storage
Your 917376090 manual calls out end-of-season storage and notes to empty the fuel system or add stabilizer before storage. Use these guidelines when the mower will sit 30 days or more. See the 917376090 owner's manual for the full storage checklist.
| Storage situation | Best practice | Goal |
|---|---|---|
| Mower sits less than 30 days | Use fresh fuel, keep can sealed | Prevent stale fuel |
| Mower sits 30+ days | Add stabilizer or drain fuel system | Reduce varnish and deposits |
| Off-season storage | Stabilize fuel and run briefly, or drain | Easier spring start |
Why it matters
Stale gas can cause hard starting, rough running, and fuel-system deposits that restrict flow. Good fuel storage habits protect the carburetor and help your Craftsman mower start reliably.
Last updated: January 2026
Is it cheaper to repair or replace a lawn mower?
For a Craftsman walk-behind mower like model 917376090, it’s usually cheaper to repair when the problem is routine maintenance or a small wear item; replacement makes more sense when the engine or drive system needs major work and the repair total approaches about half the cost of a comparable new mower.
Quick rule of thumb we use
- Repair when the fix is simple and parts are inexpensive (blade, belt, cable, wheel hardware).
- Replace when the mower needs major drivetrain or engine work, or multiple big issues at once.
- Repair when the mower is otherwise in good shape and you can do the work yourself.
- Replace when you would pay shop labor for several hours plus parts.
Common repairs that are usually worth it
These are typical “high value” fixes on a gas walk-behind mower:
- Annual tune-up items (spark plug, air filter, oil change)
- Blade service or replacement
- Drive belt replacement (self-propelled models)
- Wheel or height adjuster repairs
- Control cable replacement
If your mower needs a new blade, the 21-inch deck blade is a common wear item; see husqvarna lawn mower 21-in deck 3-in-1 blade 532189028.
When replacement is usually the better value
Replacement tends to win when you’re facing:
- Engine internal problems (low compression, heavy smoking, metal noise)
- Repeated no-start issues after fuel and ignition basics are confirmed
- Drive system failures that require multiple parts (belt, shafts, gearbox components)
- Deck damage that affects safety or cut quality
Cost comparison guide
| Situation | Typical cost level | Best choice |
|---|---|---|
| Tune-up or blade work | Low | Repair |
| One self-propelled drive issue (belt or wheel drive parts) | Low to medium | Repair |
| Multiple drive parts plus labor | Medium to high | Replace |
| Engine replacement or major engine repair | High | Replace |
Why it matters
A well-maintained mower can run for years, but the economics change fast when labor and major assemblies are involved. Your 917376090 owner’s manual also outlines routine maintenance that prevents the most common expensive failures (oil, blade wear, seasonal checks).
Last updated: January 2026
What model number is the Craftsman 917376090?
The model number for this Craftsman walk-behind mower is 917.376090 (often written without the dot as 917376090). You’ll see it printed on the mower’s model tag and on the cover page of the 917376090 owner's manual.
Where to find the model number on the mower
We recommend checking these common locations on Craftsman walk-behind mowers:
- On the rear of the deck near the discharge opening
- On the top of the deck behind the engine
- Near the height adjuster area by a rear wheel
- On a sticker or metal plate with the serial number
How to confirm you have the right parts for 917376090
Use the model number exactly as shown on the tag to match diagrams and parts lists.
- Match the full model number: 917.376090
- Compare the part description in the diagram to what you’re replacing
- Verify left-hand vs right-hand parts (handles, brackets, axle arms)
- Use the parts list in the manual to cross-check key numbers
Quick format guide
| You might see it as | It means |
|---|---|
| 917.376090 | Standard Craftsman model format |
| 917376090 | Same model number without punctuation |
Why it matters
Using the exact model number prevents ordering the wrong blade, drive belt, wheel, or control cable. Even similar-looking Craftsman mowers can use different deck hardware and drive components.
Last updated: January 2026
