Lawn mower runs then dies

Ahhh…the smell of fresh-cut grass. Think about it. If you live in a northern region, your mower sits all winter … waiting months without any action. Your engine needs a steady flow of gasoline to run correctly.

If your lawn mower starts, runs for a while, then dies, check the ignition coil, gas cap, and spark plug. One or more of these parts could be causing your problem. Follow our repair and symptom guide to help you fix this. The Fix App makes it easy to manage all your stuff in one place. Just snap a photo and we'll find and store your user manuals, receipts, and product information in one easy-to-find place!

Lawn mower runs then dies

We will also offer some tips and advice on how you can fix these issues. Stalling lawnmowers are fairly common. That being said, one issue is way more common than any of the others. If your lawnmower is starting and then stalling, the most likely issue is the carburetor. The most common issue is that the carburetor is dirty. Here's what you need to know about how a dirty carburetor can cause a lawnmower to start, then stall out and die. By far, the most common issue that causes a stalled motor is a dirty carburetor. The carburetor on your engine is the thing that draws in air and mixes it with the fuel. Contrary to what the movies might make you think, gasoline itself is not very flammable. The carburetor draws in air from the surrounding environment and mixes it with fuel in the right ratio.

Be careful not to over-tighten on installation. Henry Zieman henryzieman Rep: 3 2. Detach the choke and throttle linkages from the lever and gently slide the carburetor off its mounting bolts.

Is your lawn mower starting up just fine and then quitting? When your lawn mower starts then dies, it not only delays the completion of your lawn care chores—it can also be kind of embarrassing. Imagine your neighbors glancing over curiously, wondering what on earth is up with you and your problematic mower. Worse still, a lawn mower is a complicated machine, so at first glance, you might not have any idea how on earth to solve the problem. You might be tempted to just write the whole thing off and buy a new one. First—and this may seem like a no-brainer, but bear with us—check the fuel levels.

This site is an affiliate for companies including Amazon Associates and earns a commission on qualifying purchases. If a lawnmower runs and then dies, it may be because the carburetor is dirty, the gasoline is bad, there is an issue with the spark plugs, too much or too little oil, a clogged air filter, dull blades, or a build-up of grass and debris. Take apart and examine each part to troubleshoot. Now that you know what issues can cause a lawnmower to stop working, you may be wondering how you can troubleshoot and diagnose each problem, as well as how to fix it. If you think that the carburetor is causing your lawnmower to stop after it has started, you will need to look at the actual carburetor.

Lawn mower runs then dies

By: Author John Cunningham. A dirty carburetor is the most common cause of a lawn mower that starts and then dies. Other possible causes include:. I have divided this guide into two pages in the interest of page speed; strap yourself in. Carb issues can very often be fixed in 5 minutes. Simply draining the gas bowl fixes many issues.

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This is actually an easy fix. Step 4 Remove the fuel linkage. Skip to content. Step 7 An important part to mention is main jet. However, before you visit a lawn mower repair shop, be sure to check online and ensure that they have good ratings and reviews and that they are known for being fair and honest with their customers and not overcharging for unnecessary services. White smoke coming out of the engine is a tell-tale sign that excessive oil is the culprit. Need Help? Most lawnmowers have a vented gas cap. Now that you have the internal components exposed, take your carb cleaning solution and spray the inside of the ports to clean out any residue. Jason Garber jayg Rep: 2 2 1. Posted: Aug 22, Options Permalink History. Fix Your Stuff Community Store. In both cases, adding a stabilizer such as Sta-bil Fuel System Stabilizer Amazon link is a smart idea. A wire brush and appropriate cleaner will do the trick if the plug is just dirty.

A lawn that might only usually take half an hour to cut can easily turn into an hour of sweat and tears, or at least sweat and several curse words. This is especially true when your mower starts then dies repeatedly. So, what is causing your lawn mower to keep stalling?

The spark plug is subjected to intense heat from the engine, often near or above 1, degrees F. That being said, one issue is way more common than any of the others. You might be tempted to just write the whole thing off and buy a new one. Remove the bolt from the bottom of the bowl and make sure not to loose the plastic washer for the bolt. Ready to take the next step toward improving your lawn? Your engine needs a steady flow of gasoline to run correctly. I get a new air filter and change the oil in my mower at the same time. Henry Zieman henryzieman Rep: 3 2. He has done planting design work on many commercial and residential projects. That takes care of getting all fuel out of the carb and tank. If you need a more precise application, Gumout makes a cleaner Amazon link that will do the trick with its jet spray applicator. All you need to do is replace the fuel cap, and your mower should start functioning properly again without any more issues. I used to mix Sta-bil into my fuel, but now I just pay a little extra for 4-cycle TruFuel — an ethanol free gas product that can sit for years without going bad.