All Small Engine Repair Guides by Equipment

Browse every troubleshooting guide by equipment category — riding mowers, zero-turns, generators, chainsaws, weed eaters, and more.

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Diagnostic Flowchart — Interactive flowchart that walks you through your engine symptoms to pinpoint the exact cause — no guessing, no wasted parts.
All Guides — Browse every troubleshooting guide by equipment category — riding mowers, zero-turns, generators, chainsaws, weed eaters, and more.
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Small Engine Troubleshooting Made Simple

Search your problem and get quick repair steps for mowers, generators, chainsaws, pressure washers, weed eaters, leaf blowers, snow blowers, ATVs, and more.

Browse by Equipment

How It Works

Describe Your Problem — Type what your equipment is doing (or not doing) in plain English, including the year, make, and model.
Get an Instant Guide — We match it to a saved guide or generate a new step-by-step fix on the spot.
Fix It Yourself — Follow the clear steps, see visuals, watch videos, and grab the right parts.

Free Small Engine Repair Guides for Every Homeowner

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 .

Not Sure What's Wrong?

Our interactive diagnostic flowchart walks you through your symptoms to pinpoint the exact cause — no guessing, no wasted parts. You can also browse all repair guides or read our small engine maintenance blog .