Lawn Mower Starts Then Dies Mower Won't Stay Running The reason it starts and dies is because the engine gets a shot of gas from the choke operation (or primer bulb) - that's enough to get it running, but the blockage in the carburetor starves it of additional gas and then the engine stalls. When the choke doesn’t work accurately, the mower engine becomes hot and the engine stops working within a few minutes. I have a Craftsman 18.o HP electric start lawn tractor model number 917.273752. ... Unsubscribe; engine stops after about fifteen minutes. Carburetor flow issues are the most common causes when a lawn mower runs for a minute then stops. A few days ago I began having a problem. Lawnmower stalls after running for about 20 minutes. If your Lawn mower starts then stops after a few minutes, there could be several reasons. In fact, the main function of a choke is to keep the engine cool. honda gcv160 engine on a troy built 21 inch push mower. With the mower turned off and the spark plug wire disengaged, clear the underside of the mower of excessive clippings, then … If the mower fires and stays running without the billowing puffs of white smoke, you have corrected your problem. Ensure to clean under the mower deck so all of the build-ups from last season is removed. Primary Cause of a Lawn Mower Stalling After Running for a Minute. thanks keith This can also happen if your mower blade is dragging in grass or clogged with grass clippings. Move your mower off your lawn to a hard surface. Lawn Mower Starts Then Dies: When it’s Time to Call a Professional. 01 - Carburetor. This stops the flow of fuel to the carburetor causing the engine to stall. If you have tested all of the methods I’ve shared for fixing your lawn mower that starts and then dies, hopefully your problem is solved. Put the blade back on and install the new spark plug on your mower. If I continue to press the primer button it will keep running. Lastly, fill up the lawnmower with oil again and you’re good to go! To determine if the fuel cap vent is clogged, try slightly loosening the cap and then starting the engine. It then stalls every few minutes once it is hot. Have changed spark plug, cl … read more Carburetor Issue. I've tried to change fuels, clean carb, keep nut with the little hole, replaced spark plugs and air filter. I have a small John Deere riding mower. The mower will run for 30-45 minutes and stop. 4.5 hp, Briggs and Stratton engine. Common solutions for: Husqvarna Lawn mower starts then stalls. Lawn Mower. Here, we’ll look at what could be causing the problem and give you some suggestions for how to fix it. It runs great for about fifteen minutes and stops. Will restart after multiple pulls. Be systematic. I have a Briggs and Stratton mower that runs for a few seconds after being primed and then stops. In fact, virtually all other problems mentioned in this guide are at least somewhat connected to the carburetor and flow of fuel. Get shopping advice from experts, friends and the community! A choke is a metal built flap that controls the entrance of air towards the mower carburetor. After waiting 10 minute or so I can restart it and the whole process is repeated. starts first pull then dies after a few minutes of running.. anyone have any suggestions where to look for the problem, air cleaner new and clean clean, new gas, new oil, new plug. Fault in the mower choke is a major issue for engine failure. Repair guides and support for gas, electric, and human powered machines used to cut grass, whether push style, or ride-on. If your Lawn mower is playing up, the key to fixing it is being systematic. 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