Search your problem and get quick repair steps for mowers, generators, chainsaws, pressure washers, weed eaters, leaf blowers, and more.
💡 Best results: Include year + make + model + symptom — e.g. "2021 Honda Foreman 520 won't start"
Latest problems solved by Lil Engine
2017 Yamaha Motorcycle Won't Crank — Starter Circuit & Battery Diagnosis
Riding Mower Won't Start And Has No Clicking Sound
Riding Mower Safety Switch Troubleshooting
Riding Mower Won't Start Due To PTO Switch
Riding Mower Ignition Switch Troubleshooting
Riding Mower Starter Solenoid Troubleshooting
Riding Mower Won't Start or Click When Turning Key
Riding Mower Clicks Once But Won't Crank
Most searched issues this week
Polaris Ranger 570 Belt Squealing — Mechanical Diagnosis
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Zero Turn Engine Will Turn Over But Not Start
Stihl Chainsaw Blade Keeps Coming Off
John Deere Mower Deck Has a Hole in It
Zero Turn Engine Doesn't Start
Select your equipment type to browse common problems
The repairs homeowners search for most — jump straight to the guide for your symptom.
Not sure what's wrong? Follow our diagnostic flowcharts to test the most likely causes in order — before buying parts.
View Troubleshooting FlowchartsTurn the key and follow your symptom down its branch — each step confirms or rules out a component before you buy parts.
What is your trimmer doing? Follow your symptom — won't start, starts then dies, bogs under load, line won't feed, and more — to the exact cause before buying parts.
Most-viewed troubleshooting walkthroughs
Polaris Ranger 570 Belt Squealing — Mechanical Diagnosis
Small Engines
Riding Mower Won't Crank — Electrical & Starter Circuit Diagnosis
Riding Mowers
Zero Turn Engine Will Turn Over But Not Start
Zero-Turn Mowers
Stihl Chainsaw Blade Keeps Coming Off
Chainsaws
John Deere Mower Deck Has a Hole in It
Push Mowers
Stihl Weed Eater Won't Stay Running
Weed Eaters
Zero Turn Engine Doesn't Start
Zero-Turn Mowers
String Trimmer Engine Running But Spool Isn't Spinning
Weed Eaters
In-depth troubleshooting hubs for each equipment type
Riding Mowers
Push Mowers
Zero-Turn Mowers
Weed Eaters
ATVs
Small Engines
Side-by-Sides
Chainsaws
Pressure Washers
Snow Blowers
Generators
Leaf Blowers
2017 Yamaha Motorcycle Won't Crank — Starter Circuit & Battery Diagnosis
Riding MowersRiding Mower Won't Start And Has No Clicking Sound
Riding MowersRiding Mower Safety Switch Troubleshooting
Riding MowersRiding Mower Won't Start Due To PTO Switch
Riding MowersRiding Mower Ignition Switch Troubleshooting
Riding MowersRiding Mower Starter Solenoid Troubleshooting
Riding MowersRiding Mower Won't Start or Click When Turning Key
Riding MowersRiding Mower Clicks Once But Won't Crank
Type what your equipment is doing (or not doing) in plain English.
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Follow the clear steps, see visuals, watch videos, and grab the right parts.
Lil Engine is a free troubleshooting resource built for homeowners, DIYers, and anyone who owns outdoor power equipment. Instead of digging through scattered forum threads or paying for a repair shop diagnosis, you can search your exact problem — including the year, make, and model of your equipment — and get a detailed, step-by-step repair guide in seconds. Every guide is grounded in real-world repair data from manufacturer service manuals, verified community forums, and hands-on experience, so you get practical answers you can trust.
We cover the full range of outdoor power equipment: riding mowers and zero-turn mowers from brands like John Deere, Husqvarna, Toro, and Cub Cadet; push mowers powered by Briggs & Stratton, Honda, and Kohler engines; portable and standby generators from Generac, Champion, and Honda; chainsaws by Stihl, Husqvarna, and Echo; plus pressure washers, weed eaters, leaf blowers, snow blowers, ATVs, and side-by-sides. Whether your engine won't start, surges at idle, bogs under load, or won't crank at all, our guides walk you through the diagnosis and fix.
What makes Lil Engine different is specificity. Generic repair advice rarely matches your exact situation. When you include your equipment's make and model, our guides are tailored to that engine series — pointing you to the right carburetor, the correct spark plug gap, and the specific safety switches that commonly fail on that platform. Each guide includes a quick answer, a quick-fix checklist, detailed causes, step-by-step repair instructions with safety notes, community tips from real repair forums, video references, and exact-fit product recommendations so you can get the right parts the first time.
Lil Engine was founded by Derick Dearmon, a professionally licensed engineer with over 20 years of troubleshooting experience across naval, electrical, and power generation systems, and a lifelong small engine hobbyist. The systematic diagnostic approach that drives every guide is the same method used to track down faults in complex industrial equipment — applied to the mower in your garage. Learn more about our story and editorial process.