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Lawn Mower Repair

DIY Lawn Mower Repair Guides + Troubleshooting Help

Lawn mowers break. It’s a fact. I’ve faced many, many lawn mower problems over the years and have picked up a bit of a knack for lawn mower repair and troubleshooting along the way. Most issues you are likely to face can be fixed for relatively little money if you’re willing to dedicate a bit of time to it.

I have published quite a few DIY repair guides on the website, all of which are listed on this page. I’ve tried my best to put them in some kind of order, either based on the part you’re having trouble with or the symptom you’re seeing.

Use the links below to skip to the most relevant sections and articles.

Air Filter
Battery
Belt/Pulley/Spindle
Blades/Cutting
Deck
Engine
Fuel System
Ignition/Starting Issues
Mower Shuts Off
Oil Problems
Other Problems
Tires/Wheels
Transmission

Air Filter

Dirty Lawn Mower Air Filter Symptoms

Dirty Lawn Mower Air Filter Symptoms

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Lawn Mower Air Filter is Soaked in Oil

Lawn Mower Air Filter is Soaked in Oil: Why + How to Fix

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Battery

Symptoms-of-a-Bad-Voltage-Regulator-on-a-Lawn-Mower

Symptoms of a Bad Voltage Regulator on a Lawn Mower (+ What to Do)

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Lawn-Mower-Battery-Not-Charging

Lawn Mower Battery Not Charging (Why + What to Try)

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Will_a_Lawn_Mower_Run_with_a_Dead_Battery

Is My Lawn Mower Battery Dead? (Symptoms)

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What Keeps Draining My Lawn Mower Battery

What Keeps Draining My Lawn Mower Battery? (Causes+Fixes)  

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How to Restore a Lawn Mower Battery

How to Restore a Lawn Mower Battery

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Belts, Pulleys and Spindles

How_to_Remove_a_Stuck_Lawn_Mower_Pulley

How to Remove a Stuck Lawn Mower Pulley

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How to Tell If Mower Deck Spindle is Bad

How to Tell If Your Mower Deck Spindle is Bad (6 Signs)

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Spindle Turns When Removing Blades – How to Stop It

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Why Does My Lawn Mower Belt Keep Breaking

Why Does My Lawn Mower Belt Keep Breaking?

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Your Mower Deck Belt Keeps Coming Off? Here’s Why

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The Symptoms of a Loose Mower Deck Belt

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Blades/Cutting System

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Riding Mower Scalping Lawn? (Here’s What to Check)

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Lawn_Mower_Blade_Won_t_Engage

Lawn Mower Blade Won’t Engage (Here’s How to Fix This)

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Lawn_Mower_Not_Cutting_Low_Enough

Lawn Mower Not Cutting Low Enough (Possible Causes + Solutions)

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How to Tell If Lawn Mower Blade is Dull? (10 Symptoms)

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Mower Blade Hitting Deck (How to Diagnose + Fix)

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Lawn_Mower_Blades_Hitting_Each_Other

Lawn Mower Blades Hitting Each Other? (Try This)

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Deck

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Mower Deck Digging Into Ground (Why + What to Do)

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How to Level a Mower Deck (4 Easy Steps)

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Riding Mower Deck Not High Enough Even on Max Height (Word of Warning)

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Mower deck stuck

My Mower Deck is Stuck (Why + What to Do)

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How to Repair Rusted Lawn Mower Deck

How to Repair a Rusted Mower Deck (Step by Step)

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Engine

Lawn_Mower_Engine_Has_No_Compression

Lawn Mower Engine Has No Compression (Why + How to Fix)

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Lawn_Mower_Engine_Cracked_Block

Lawn Mower Engine Cracked Block (Diagnosis + What to Do)

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Mower_Engine_Kicks_Back_When_Starting

Mower Engine Kicks Back When Starting (Why + How to Fix)

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Lawn_Mower_Engine_Knocking

Lawn Mower Engine Knocking (Why + What to Do)

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How_to_Tell_If_Lawn_Mower_Engine_or_Head_Gasket_is_Blown

How to Tell If Lawn Mower Engine or Head Gasket is Blown (11 Signs)

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Lawn_Mower_is_Surging

Lawn Mower is Surging (Causes + How to Fix)

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Fuel System

Vapor_Lock_on_a_Lawn_Mower

Vapor Lock on a Lawn Mower (What is It + How to Fix)

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How_to_Fix_a_Lawn_Mower_Throttle_Cable

How to Fix a Lawn Mower Throttle Cable (18 Simple Steps)

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My_Lawn_Mower_Smells_Like_Gas

My Lawn Mower Smells Like Gas (9 Possible Reasons Why)

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Lawn_Mower_Fuel_Pump_Not_Working

Lawn Mower Fuel Pump Not Working (Diagnosis + Replacement)

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Lawn_Mower_Carburetor_Leaking_Gas

Lawn Mower Carburetor Leaking Gas (What You Should Do)

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Replace_a_Lawn_Mower_Fuel_Filter

Replace a Lawn Mower Fuel Filter (Super Simple Guide)

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Ignition/Starting Issues

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Mower Won’t Turn Over Unless Spark Plug is Out (Why + How to Fix)

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Lawn-Mower-Blows-Fuse-When-Starting

Lawn Mower Blows Fuse When Starting (Explanation + Fix)

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Pull Start Rips Out of Your Hand (Why + Solutions)

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How_to_Replace_Your_Lawn_Mower_Pull_Cord

How to Replace Your Lawn Mower Pull Cord (17 Easy Steps)

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How to Fix a Pull Start That Won’t Retract (+ Why It Happens)

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Lawn_Mower_Won_t_Turn_Over_with_New_Battery

Lawn Mower Won’t Turn Over with New Battery (Why?)

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Mower Shuts Off

Electric-Lawn-Mower-Starts-Then-Dies

Electric Lawn Mower Starts Then Dies (What’s Wrong?)

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Lawn_Mower_Starts_Then_Dies

Lawn Mower Starts Then Dies (Look At These Things)

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Lawn Mower Runs for 30 minutes Then Dies

Lawn Mower Runs for 30 minutes Then Dies (Why + How to Fix)

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starting mower with starter fluid but then it dies

Lawn Mower Starts with Starter Fluid Then Dies (Why + How to Fix)

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Riding Mower Stalls When Blade is Engaged: Why + How to Fix

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Oil Problems

I_Put_Gas_in_Oil_Tank_of_Lawn_Mower

I Put Gas in Oil Tank of Lawn Mower (What to Do)

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Lawn Mower Leaking Oil onto Deck

Lawn Mower Leaking Oil onto Deck (Why + How to Fix)

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oil leaking out from lawn mower exhaust and onto deck

Oil Coming Out of My Lawn Mower Exhaust: Why + How to Fix

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Other Lawn Mower Problems

How_to_Fix_a_Lawn_Mower_Handle

How to Fix a Lawn Mower Handle (3 Repairs)

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How_to_Glue_Lawn_Mower_Seat_Back_On

How to Glue Lawn Mower Seat Back On (Quick + Easy)

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Lawn_Mower_Sputtering

Lawn Mower Sputtering (Why + How to Fix)

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Lawn_Mower_Running_Slow

Lawn Mower Running Slow (Causes + What to Do)

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How to Adjust Steering on Zero Turn Mower (2 Phase Process)

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How_to_Improve_Lawn_Mower_Suction

How to Improve Lawn Mower Suction (6 Tips)

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Tires/Wheels

Lawn_Mower_Wheels_Not_Turning_

Lawn Mower Wheels Not Turning (Don’t Panic – Do This)

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Lawn-Mower-Wheels-Flatten-Grass-(How-to-Stop-This)

Lawn Mower Wheels Flatten Grass (How to Stop This)

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Lawn_Mower_Leaving_Wheel_Marks

Lawn Mower Leaving Wheel Marks (How to Fix)

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How_to_Remove_a_Stuck_Lawn_Mower_Wheel

How to Remove a Stuck Lawn Mower Wheel? (Push Mowers)

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Lawn_Mower_Wheel_Keeps_Falling_Off

Lawn Mower Wheel Keeps Falling Off (Why + What to Do)

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How_to_Remove_a_Stubborn_Rear_Wheel_from_Your_Lawn_Tractor

How to Remove a Stubborn Rear Wheel from Your Lawn Tractor (3 Things to Try)

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Transmission

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Hydrostatic Transmission Slipping When Hot (How to Fix)

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How to Make a Zero Turn Ride Smoother (My 10 Best Tips)

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Self-Propelled_Lawn_Mower_Moving_Slow

Self-Propelled Lawn Mower Moving Slow or Not Working (How to Fix)

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Zero_Turn_Mower_Weak_On_One_Side

Zero Turn Mower Weak On One Side (Why + What to Do)

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Zero_Turn_Mower_Jerky_Control

Zero Turn Mower Jerky Control (Why + What to Do)

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Hydrostatic Mower Won't Go Up Hills

Hydrostatic Mower Won’t Go Up Hills (Why + My Solutions)

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