I love a freshly mowed lawn. The crispness of the neatly cut grass and the sense of order it brings to my mind is extremely satisfying. However, the lawn mower always seems to break down just when I need it most. When that happens, I count on my skills and Sears PartsDirect’s wealth of knowledge to do most repairs myself.
These easy-to-do lawn mower repairs can help you, too, return a sense of order to your life and stop the evil eyes from neighbors wondering why your grass is so tall.
Up for more of a challenge or just want more information about your walk-behind lawn mower? Head over to our complete lawn mower repair help page, for everything from troubleshooting tips and repair guides to common parts and frequently asked questions.
Replacing a lawn mower blade
The blade on a lawn mower must be sharp and straight to cut grass evenly. If you hit a rock or other hard object when mowing, inspect the blade to see if it's bent or chipped; if so, replace it.
You can sharpen it yourself, but run the risk of taking off more on one side than the other, which throws the blade off balance. Even if you are a master sharpener, eventually the blade wears down and must be replaced.
It's simple and quick to replace a mower blade, following the instructions in our DIY repair guide How to replace a lawn mower blade.
Replacing a lawn mower wheel
If a wheel on your lawn mower is damaged or is so worn down that the wheel slides instead of rolls, it's time to replace the lawn mower wheel.
Replacing the wheel is an easy and quick job; just follow the instructions in our DIY repair guide How to replace a lawn mower wheel.
Replacing a lawn mower spark plug
The spark plug ignites the air and fuel mixture in the lawn mower's engine. Replace the spark plug every season or as often as directed in your owner's manual. Also replace the spark plug if it's damaged or fouled, which can make it hard to start the mower or make the mower sputter.
You can install a new spark plug in minutes. See our DIY repair guide How to replace a lawn mower spark plug for instructions.
Replacing a lawn mower drive belt
The drive belt on a lawn mower connects the engine to the gear case, which rotates and propels the mower forward. If the belt breaks or wears down, the mower won't move forward easily.
Replacing the drive belt on a mower is a fairly easy repair if you follow the instructions in our DIY repair guide How to replace a lawn mower drive belt.
Replacing a lawn mower recoil starter
Pulling the rope on the recoil starter makes the crankshaft spin and starts the engine. If the crankshaft doesn't spin, the recoil starter is probably broken. On pre-2014 mowers, just getting to the recoil starter can be a hassle, but if your mower has an overhead valve engine produced after 2014, this repair is much easier to do. Our DIY repair guide How to replace a lawn mower recoil starter on an OHV engine shows how simple the repair is.
Replacing a lawn mower carburetor
The carburetor mixes fuel with air and then sends the fuel mix into the engine cylinder where it combusts to drive the piston. If the carburetor is clogged or damaged, the engine either won't start, or it starts but run rough.
Fortunately, replacing the carburetor on your lawn mower is easy to do following the directions in our DIY repair guide How to replace a lawn mower carburetor.
These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.
Replace the ignition coil if it isn't sending electric current to the spark plug when you pull the recoil starter rope.
The flywheel key couples the flywheel to the engine crankshaft. Replace the flywheel key if it's broken.
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.
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.
See how to tune up your mower once a year to keep it running well.
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.