Walk-behind mower symptoms
It's difficult to get your mowing done when your lawn mower won't start, runs rough or won't stay running. Our symptoms and troubleshooting tips can help you resolve gas walk-behind lawn mower problems. You can get the repair parts you need by using the search bar at the top of the page. Use our step-by-step walk-behind mower repair guides to help you install parts so you can mow the lawn before the grass grows too tall.
Choose a symptom to see related walk-behind mower repairs.
These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.
Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cracked.
Check your lawn mower blade regularly and replaced it if it's bent or damaged.
When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to replace this tiny but essential part.
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.
Learn how to fix your lawn mower when its engine surges
Learn how to safely use starter fluid on a lawn mower
Learn how a blade removal tool makes replacing the blade easier and safer