Walk-behind lawn mower repair guides
If your walk-behind lawn mower won't start, the engine runs rough or the mower doesn't cut grass like it should, learn how to fix it by following the steps in these DIY repair guides and videos. Our lawn mower repair help covers major brands, like Craftsman, Poulan and Snapper. Search your model number to find a complete list of replacement parts, then order the part you need.
Repair guides common to all gas walk-behind mowers
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.
Replace the ignition coil if it isn't sending electric current to the spark plug when you pull the recoil starter rope.
The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.
Replace the recoil starter if it doesn't move when you pull the 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 to replace the front deck tray on your lawn mower if it's cracked or damaged.
The carburetor mixes air with fuel to drive the piston. Replace the carburetor if it's clogged or damaged.
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.
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.
These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.
Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.
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 starter rope on your walk-behind lawn mower won't retract, replace the mower recoil starter assembly.
Symptoms for gas walk-behind mowers
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 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