Gas Walk-Behind Mower: Why does my lawn mower cut unevenly?
If your lawn mower isn't cutting the grass evenly, first make sure that the wheels are set at the same height. If a wheel is damaged, replace it to ensure that the mower travels evenly over the lawn.
Also check that the blade is sharp and undamaged. A dull blade tatters rather than slices the ends of the grass, leaving the tips brown and dry. A damaged blade is off balance, so it cuts unevenly. Replace the blade if it's damaged.
THESE REPAIRS MAY HELP SOLVE YOUR GAS WALK-BEHIND MOWER PROBLEM
Replace a lawn mower blade
A dull or damaged blade won't cut grass evenly. For safety and for a cleaner cut, replace a mower blade that's chipped, broken or otherwise damaged. If the mower vibrates too much, check the mower blade for damage because a bent or unbalanced blade can cause mower vibrations.
Replace a lawn mower blade
How to replace a lawn mower blade
When your lawn mower blade is no longer making the cut because it's dull, bent or damaged, follow the steps in this repair guide and video show how to replace the mower blade in about 15 minutes.
Replace a lawn mower wheel
The lawn mower won't move with a broken wheel. A damaged wheel can cause uneven grass cuts. If the wheel on a walk-behind mower is damaged, replace it with one that matches the size on the opposite side of the mower.
Replace a lawn mower wheel
How to replace a lawn mower wheel
A worn or damaged lawn mower wheel can wobble. This step-by-step repair guide shows how to replace a lawn mower wheel in 5 quick steps.
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
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, ba…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
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 rebuild a lawn mower carburetor
The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…
How to replace a lawn mower recoil starter on an OHV engine
Replace the recoil starter if it doesn't move when you pull the starter rope.…
How to replace a lawn mower wheel
Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…
Effective articles & videos to help repair your 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 all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn about the different kinds of mower blades and how to maintain them.…