April 20, 2023

Walk-behind lawn mower articles

These walk-behind lawn mower articles and how-to videos from Sears PartsDirect can help you get the most from your mower. From troubleshooting why your lawn mower won't start to how to perform a tune-up or change a blade, we have the advice and tips to keep your mower performing at its best. For more DIY advice, check out our lawn mower repair help section for troubleshooting guidance and step-by-step repair instructions.

Gas Walk-Behind Mowers

Articles and videos common to all gas walk-behind mowers

February 11, 2023
Introduction image for article on the top 10 lawn and garden tools to have in 2023.

Learn about the top 10 must-have electric lawn & garden tools for 2023

August 30, 2022
Image for intoruduction section describing Sears PartsDirect website features.

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

August 11, 2022
Introduction image for article on the new Search Bar feature on Sears PartsDirect.

Learn about a new feature added to the Search Bar on Sears PartsDirect

June 29, 2022
Introduction image for Sears and Sears PartsDirect questions article.

Get answers to frequently asked questions about Sears and Sears PartsDirect.

June 7, 2022
Introduction image for Main Components of a Lawn Mower.

Learn about the main parts of a lawn mower and when to replace parts.

January 3, 2022
PHOTO: Pull off the air filter base.

Learn how to fix your lawn mower when its engine surges

December 29, 2021
Using starting fluid to start a lawn mower

Learn how to safely use starter fluid on a lawn mower

August 6, 2020
How to use a lawn mower blade removal tool.

Learn how a blade removal tool makes replacing the blade easier and safer

January 3, 2020
Grass buildup on a lawn mower deck can cause rust and corrosion on the deck as well as an uneven cut on the lawn.

Learn 3 tips to keep the underside of your mower deck grass-free.

October 18, 2018
How to sharpen a mower blade

A dull blade leaves grass tips tattered. Sharpen it several times a season. Here's how.

September 1, 2016
Lawn mower won't start troubleshooting video: spark plug and ignition problems video.

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.

September 1, 2016
Lawn mower won't move troubleshooting video: motion drive failure.

Find out whether a broken or disconnected drive cable is the reason why your lawn mower won't move.

September 1, 2016
Lawn mower won't start troubleshooting video: fuel, ignition and compression problems video.

Check whether a clogged air filter, bad spark plug or contaminated gas is why your lawn mower won’t start.

June 1, 2016
How to mow a lawn for healthier grass.

How often and tall you mow your lawn has a big impact on its health. Check out these 3 rules.

February 1, 2016
Six weeks to a better lawn.

Do these 5 things this spring for a lawn that's healthier all summer.

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

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.

How to replace a lawn mower spark plug

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.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

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.

Repair difficulty
Time required
 45 minutes or less