If your lawn mower won’t start after winter storage, you’re not alone. This common issue can be resolved by following a few troubleshooting steps. In this guide, we’ll explore potential causes and solutions to get your lawn mower running smoothly again.
Why Won’t My Lawn Mower Start After Winter?
When a lawn mower sits idle during the winter months, various factors can prevent it from starting in the spring. Here are some typical reasons:
- Stale Fuel: Gasoline left in the mower over winter can degrade and clog the carburetor.
- Battery Issues: If your mower has a battery, it may be dead or weak after months of inactivity.
- Spark Plug Problems: A dirty or damaged spark plug can prevent the engine from firing.
- Clogged Air Filter: Dust and debris can block airflow, making it difficult for the engine to start.
- Oil Viscosity: Cold temperatures can thicken oil, hindering engine performance.
How to Troubleshoot a Non-Starting Lawn Mower
1. Check and Replace the Fuel
Stale fuel is a common culprit. Here’s what you can do:
- Drain Old Fuel: Remove any old gasoline from the tank using a siphon pump.
- Add Fresh Fuel: Refill with fresh gasoline, ideally with a stabilizer to prevent future issues.
- Inspect Fuel Lines: Ensure there are no cracks or blockages in the fuel lines.
2. Examine the Battery
For electric start mowers, a healthy battery is crucial:
- Test the Battery: Use a multimeter to check the battery’s voltage.
- Recharge or Replace: If the battery is low, recharge it. Replace if it no longer holds a charge.
3. Inspect the Spark Plug
The spark plug is vital for ignition:
- Remove and Clean: Unscrew the spark plug and clean it with a wire brush.
- Check for Damage: Look for cracks or wear. Replace if necessary.
- Reinstall Properly: Ensure it’s tightly secured to avoid air leaks.
4. Clean the Air Filter
A clean air filter ensures proper airflow:
- Remove the Filter: Take out the air filter from its housing.
- Clean or Replace: Wash with soapy water if it’s foam. Replace if it’s paper and dirty.
- Reinstall: Make sure it’s dry before putting it back.
5. Assess the Oil
Proper oil viscosity is crucial for engine performance:
- Check Oil Level: Use the dipstick to ensure the oil is at the right level.
- Change Oil: If the oil is thick or dirty, drain it and refill with fresh oil suitable for your mower.
Additional Tips for a Smooth Start
- Prime the Engine: If your mower has a primer bulb, press it a few times to help start the engine.
- Check the Choke: Ensure the choke is in the correct position for starting.
- Inspect the Blade: A stuck blade can prevent the engine from turning over. Ensure it’s free to move.
People Also Ask
How Often Should I Change My Lawn Mower’s Oil?
It’s recommended to change your lawn mower’s oil every 20-50 hours of use or at least once a season. Regular oil changes keep the engine running smoothly and extend its lifespan.
What Fuel Should I Use for My Lawn Mower?
Use fresh, unleaded gasoline with an octane rating of at least 87. Avoid ethanol blends higher than 10%, as they can cause engine problems.
How Can I Prevent My Lawn Mower from Having Starting Issues?
To avoid starting issues, perform regular maintenance, including oil changes, air filter cleaning, and using fuel stabilizers. Store your mower in a dry place and run the engine dry of fuel before winter storage.
Why Does My Lawn Mower Stall After Starting?
A lawn mower may stall due to a clogged carburetor, dirty air filter, or faulty spark plug. Ensure all components are clean and in good condition.
Can I Use Starter Fluid on My Lawn Mower?
Yes, starter fluid can be used to help start a stubborn engine. Spray a small amount into the air intake, then attempt to start the engine.
Conclusion
By following these troubleshooting steps, you can identify and resolve why your lawn mower won’t start after winter storage. Regular maintenance and proper storage practices can prevent many of these issues. If problems persist, consider consulting a professional for further assistance. For more tips on lawn care, check out our guides on lawn mower maintenance and seasonal lawn care.