DIY walk-behind mower repair
Don't let your grass grow out of control because your push lawn mower won't start, vibrates too much or doesn't cut well. Let Sears PartsDirect show you how to fix your gas mower with our troubleshooting tips and videos and step-by-step repair guides.
Preventive maintenance can go a long way toward keeping your gas mower in good operating condition. Learn how to tune up a mower at the beginning of each season and how to replace the cutting blade to get the mowing season off to a good start.
If you pull the starter rope and nothing happens, watch our video for troubleshooting tips on why a lawn mower won't start to figure out what's wrong. If your gas mower starts but won't move, there's a good chance the mower's drive system might be to blame. Get your mower moving again using the DIY tips in our video troubleshooting motion drive failures in a lawn mower.
If you have a different problem with your gas mower, check out our articles and videos page for additional troubleshooting tips. Once you find out what part to replace, our DIY repair guides give you detailed instructions to complete the job and get your lawn mower working again. To find the owner’s manual or a complete list of replacement parts for your gas walk-behind lawn mower, search for your model number.
Symptoms for gas walk-behind mowers
Repair guides for gas walk-behind mowers
These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.
Replace the recoil starter if it doesn't move when you pull the starter rope.
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.
The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive cable if it's broken or frozen up inside the sheath.
The flywheel key couples the flywheel to the engine crankshaft. Replace the flywheel key if it's broken.
The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.
Check your lawn mower blade regularly and replaced it if it's bent or damaged.
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.
The carburetor mixes air with fuel to drive the piston. Replace the carburetor if it's clogged or damaged.
Replace the ignition coil if it isn't sending electric current to the spark plug when you pull the recoil starter rope.
Learn how to replace the drive belt on your lawn mower if it's worn or broken and won't drive the mower.
Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.
These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.
If the starter rope on your walk-behind lawn mower won't retract, replace the mower recoil starter assembly.
The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.
If the spark plug doesn't fire when you try to start the mower, you could have a defective ignition coil. Follow these step-by-step instructions to replace it.
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.
Articles and videos for gas walk-behind mowers
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.
Learn about the different kinds of mower blades and how to maintain them.
See how to tune up your mower once a year to keep it running well.
Keep these 5 things on hand so you’re ready to mow grass all season long.
A blade obstruction, bad recoil starter or locked-up engine can prevent the recoil starter rope on your mower from working. See how to fix the problem.
Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.
Your lawn mower will last longer and run better if you take these steps before storing it for winter.
Find out whether a broken or disconnected drive cable is the reason why your lawn mower won't move.
Check whether a clogged air filter, bad spark plug or contaminated gas is why your lawn mower won’t start.
How often and tall you mow your lawn has a big impact on its health. Check out these 3 rules.
A dull blade leaves grass tips tattered. Sharpen it several times a season. Here's how.
Tired of mowing? Here's our tongue-in-cheek advice rendering your mower useless.
It's easy to install a replacement wheel on your walk-behind lawn mower if the wheel is damaged. Just follow the steps in this video.
Do these 5 things this spring for a lawn that's healthier all summer.
Prevent your mower deck from rusting by following our advice for keeping grass clippings from sticking.
Learn what lawn mower repairs you can do easily by yourself.
Learn more about your lawn mower from the answers to these often-asked questions about walk-behind lawn mowers.