The fuel cap creates a seal in the fuel system and when it fails to provide a functional seal, a fuel flow issue ensues. If your lawnmower starts up but then dies in the middle of mowing your lawn, you could have a bad spark plug. It may not display this or other websites correctly. Geo. 1.4 Step 4. All rights reserved. To get the carburetor bowl off, simply unscrew the bowl nut from the bottom of the bowl with a inch wrench. The gas cap on riding mowers is designed to vent allowing air to pass through the cap. After taking a look at the air filter, the next place I would investigate is the fuel cap. Thats when well check for spark. The cooling fins can become plugged with dirt and grass clippings preventing your fan from pushing out air. Nov 24, 2017 by Regularly checking your engine oil level and air filter condition in addition to scraping your deck and sharpening your mower blade is essential to keeping your riding mower working at its best. Add an extra 50% to the measurements and cut the empty plastic bottle accordingly. It has an electrode that passes through a ceramic insulator. With the metal spatula, apply light pressure to set the patch in place and remove bubbles that may surface. This small, unassuming device is responsible for creating that electrical spark that ignites the fuel in your engine. Bad fuel. I have found my problem.. the choke had a broke spring, replaced it and ir runs fine. Newer lawnmowers have fuel caps that comply with government evaporative emissions requirements. Simply drain out the old fuel and replace with new, clean gasoline. For a better experience, please enable JavaScript in your browser before proceeding. That is not the issue with mine. The oil enters separately. Filling the tank had an amazing effect. Glad to help you. If the engine runs rough after hitting a rock or stump, check the flywheel key-a damaged flywheel key will disrupt the ignition timing. Work the mower in the usual way until it stalls, then go ahead and follow these steps: If the mower starts and runs as normal, your gas cap is faulty, go ahead and replace it. Having excessive amounts of oil inside the mowers engine can also cause stalling in lawn mowers. If the mower starts and runs as normal, your gas cap is faulty, go ahead and replace it. 10. I hooked up an ohm meter, and it moves the meter as I move the gauge lever, unless there is another way to test it, I think the problem is elsewhere. The vent is a check valve that allows air into the fuel tank but keeps gas fumes inside. My wife, as is her wont, was mowing while I was out of town for the week. . I have a crafsman 18.5 42" cut riding lawn mower,five years old, same thing, starts great, runs great, cuts great, for about ten minutes, then misses and quits. What a pain in the jacksie! Took it for a test run and it did great for 10 mins then shut down again. Make sure that the fuel cap is in good condition and has a vent that works properly. The lower the ethanol content the better. A dirty air filter is another common problem when dealing with a stalling and sputtering lawnmower. Remove solenoid, clip plunger, install fuel shut off valve. I need help, I have cleaned every thing, and checked everything I can think of, again, I NEED HELP !! I have a John Deere LX178 with a 15HP Kohler-John Deere engine. People by & large do not understand engines or combustion theory. This has become more frequent over past 3 years. There are so many different things that can cause your mower to die. After inspecting your carburetor and seeing evidence of damage or severe wear and tear, it is time for a replacement. Prepare the appropriate container for the old oil. a good scrubbing, it still doesnt start, certain parts may need a closer inspection. There is usually a large plastic cover protecting self-propel mechanism that should be removed prior to accessing the carburetor. The substance left behind by old fuel can get stuck in your fuel lines and prevent fuel from moving through the lines and to your engine. If the mower is allowed to sit for a time, usually a few hours, air will seep back into the tank and the mower will start again. To check, simply start the lawn mower as you normally would and observe. Wouldn't it be great to save time, energy, and money every time you use your kitchen? Check out this handy guide including charts for common riding mower problems and solutions:Common Riding Lawn Mower Problems & Solutions. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Start the lawnmower and mow your lawn as you normally would. As an Amazon Associate, we earn from qualifying purchases. Is the hole open??? Had the same issue. This increased pressure can cause your riding mower to overheat and die. Just have an approved gas container available for a place to drain old fuel. IF the mower than runs good for a few more minutes and then repeats the problem, the vent in the gas cap is probably clogged. With our Fix app, you always have a personalized repair guide on-hand. My mower would quit after 10-15 minutes of running. Startup the lawnmower to warm up the oil allowing for easier drainage. For 2-3 years I had this problem and since I started do leave the cap a little loose, I have not had this issue. The apparently becomes loose. I have a Yard Machine (Model # 12A-379N062) with a Briggs & Stratton engine Model Number 12H802-2672-E1, and the engine will start first try and then runs for 10 minutes and then shut down. I say at 5 because now I cant even get the deck to go to level 6 because the left side tops out before it can go into the 6 slot. Ethanol is an environmentally friendly fuel option added to gasoline. Today I found the problem. Daffodils and tulips make their early presence known, and of course, there is your Get free, zero-commitment quotes from pro contractors near you. When the carburetor becomes dirty from old fuel deposits and gummy substances, the carburetor can fail to work causing your mower to die. If you find a break, replace the coil. My wife continued her mowing. Just out of curiosity, why did you completely change the question? Wipe down the area around the oil tank to remove any debris. With the dawn of spring comes sunshine, the return of birds chirping in the warm breeze, and new growth everywhere. A mower that shakes irregularly while idling or surges while in use is likely affected by a bad spark plug. Slowly fill the tank and be careful not to overfill. Menu Ask a Question Share a Post Account Search. When the mower dies, remove the gas cap and reinstall it. Use a turkey baster to suction oil out of the oil fill. Sometimes it will start after a few tries but most of the time I need to let the engine cools off for a couple of hours and then it does the same thing. Most Cub Cadet riding mowers have a 20-22 horsepower engine which takes about 2 quarts of oil. This sticky fuel can clog up the carburetor and cause the engine to stall. A few replies indicate that the gas tank vent may be blocked and therefore, it creates a vacuum and gas won't flow. If your lawn mower still runs for a while and then dies with the fuel cap off then check for blockages in the fuel lines. Sometimes the check valve will fail and no longer allow air to enter the tank. I have a Kohler Command CV491 17.5 HP in a John Deere L110 residential riding mower that begins surging after about . Reason 3: Dirty carburetor; a dirty carburetor won't get enough fuel during operation, causing the running engine to shut down. Replaced the fuel filter. My wife, as is her wont, was mowing while I was out of town for the week. When too much oil is added to your riding mower, several problems can develop if the oil level isnt corrected. Starting cable connectors loose. If your lawn mower starts, runs for a while, then dies, check the ignition coil, gas cap, and spark plug. Have a good one. If the lawnmower bag gets too full, the lawnmower will shut off. Letting it sit until it cools possibly allows enough time for air to seep in and equalize the pressure so it's good for another 10 minute run. Safety switch malfunctioning. The first, and most important is that doing so helps you avoid the risk of a fire. Drive pulley against engine PTO face. The spark plug on your lawnmower should be replaced at least yearly to ensure trouble-free operation. 2022 LawnMowerForum.com. Take the heat gun and start heating the damaged section of the tank. Occasionally a cracked ceramic insulator can allow the center electrode to ground to the engines frame, also causing the mower to die. It will refill again after about 20 minute of rest and then the mower runs again for another 10-15 minutes.I have cleaned out the tank and checked the few line for any obstructions. May 2, 2010 / cub cadet stalling after ten minutes running - recovers when i turn off the blades #6. Ive put together a list of items to check when looking for your problem. You must log in or register to reply here. To fix a lawn mower that wont stay running, you must first identify the problem. Put the carburetor bowl and bowl nut in place and secure each well. Change the oil after every 50 hours of use or as recommended by the manufacturer. No sputtering, just died. The carburetor might be clogged. If the tank is sealed, the fuel becomes air locked, and the mower stalls. I later put on a new ignition module and new carb, but still the same thing. A plugged filter cannot only cause your mower to run sluggishly and shut down, but it can also cause costly internal engine damage. Reagan Jones. However, you can just ask a new question if you have a new one. I Inherited a 2005 cub cadet LT1550. Help please!!! I am not good on the computer.. Remove the old armature, check the part number and order its replacement by part number, not by mower model. Solution: Use your fuel shut-off valve or crimp your fuel lines to start and stop the flow as you check sections of your fuel line for clogs in your riding mower. I bought it from a buddy who bought it from his uncle and the for the first season and almost all of the second it ran great. I removed the black plastic piece from the pintle of the fuel shut off solenoid on the carb and the engine ran for hours after that. A clogged vent will cause your fuel tank to form a vacuum restricting fuel. Fuel lines are clear and flows from gas tank well. Most problems that will cause a John Deere lawn mower to stall after 20 minutes occur due to the distribution and rate of flow in the fuel and air systems. Drive belt wedged between idler pulley. It is now healthy and happy and runs like a champ. Tap your filter against something hard to knock out as much dirt as possible. No matter what the reason is for the fuel in your lawn mower to be degraded, fuel quality issues are generally the easiest to fix. Works fine now. Can you help me? The mower is a 2006 Simplicity Javelin RZT2044 with about 125 hours on it. A mower armature is a small component fastened to the exterior of the engine; some may refer to it as a coil. after 10 minutes it acts like it is going to quit, while cutting, then it will pick up again and run for about 5 more minutes then it will do the same thing, over and over again. The process is simple, but youll need to use caution. Faulty Choke. 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