Reason 4 . Has happend to me about 10 yrs ago with a different tractor. This oil will begin to burn off creating smoke. Commonly gas caps are lost, and the owner may MacGyver up an oil can cap that fits like a glove. While you can try to clear the clog, you may end up needing to purchase a new gas cap for your riding mower. If you are unable to fix your riding mower or dont want to attempt a more complicated repair, have your local lawn mower dealership or repair shop for assistance. If, on the other hand, the mower still wont start, youll need to check the mower for spark. You may be using old fuel or the gas has water in it. As long as there is enough oil in reserve, the issue almost always lies in the gasoline. 2. Thoroughly scrub the tank until the smell of gasoline is undetectable. These caps have charcoal filters in them to absorb any fuel that evaporates and gets past the check valve in the gas cap. Finally it shuts off and refuse to start until it cools down. Gasoline can begin to break down and become less effective as soon as 30 days after purchase. Your gas cap can become plugged and no longer work correctly. Remove the plug wire and then use a socket wrench to remove the old spark plug. Your riding lawn mower requires unleaded gasoline with a minimum octane rating of 87 and a maximum ethanol content of 10 percent. Once the bowl has been removed, check for debris and build up. Rebuild or replace the carburetor if it's clogged. My wife, as is her wont, was mowing while I was out of town for the week. 2022 LawnMowerForum.com. A mower deck plugged with grass can cause your engine to overwork and overheat making your riding mower shut down while you are mowing. This is the info I can find on the mower. The vent is a check valve that allows air into the fuel tank but keeps gas fumes inside. Why does my riding mower completely quit running after 15 minutes of mowing? 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. Use the screwdriver to gauge the piston's range of motion (image F below). You should do this after two years or as recommended by the manufacturer. por . The most common cause of a mower that runs for thirty minutes and then dies is a faulty armature. Cleaned carb three times. 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. This will allow air back into the fuel tank so fuel can flow again. Also if it is the number one cylinder you may have to let the engine cool down before it will start. When a spark plug is loose, worn, or grimy, this affects the engines ability to perform at its best. Trying to engage the blades in tall or wet grass can also cause the mower to die. the mower engine may stop working after only a few minutes. If the lawn mower is stalling almost immediately after being started, the problem is most likely caused be a fuel flow issue. Remove the air filter from your filter housing. The battery is new, but it seems to be a fuel issue. Menu Ask a Question Share a Post Account Search. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. I pulled the lid off, sprayed the carburetor, put in a new air filter. You are using an out of date browser. Cooling. Change the fuel filter -- which is also a . Occasionally a cracked ceramic insulator can allow the center electrode to ground to the engines frame, also causing the mower to die. Customer reviews and photos may be available to help you make the right purchase decision! View our Privacy Policy here. If it is original, it doesn,t owe me anything, but sure seems weird. If, on the other hand, the mower still won't start, you'll need to check . One potential issue could be with the quality of the fuel. Have a good one. I have a Poulan 15.5 38in riding mower. 14K views, 58 likes, 7 loves, 0 comments, 6 shares, Facebook Watch Videos from Real Stories: Through horses, a man feels an irrepressible duty to move in harmony with his pain. When I called to let her know that I had arrived, she told me the John Deere rider had stopped after about 15 minutes and she had to get the neighbors to help push it back to the house. We welcome your comments and suggestions. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Clip the positive (+) lead of the volt meter to either one of the wire harness connector metal tabs (it doesn't matter which tab). Yep, I agree. We were unable to add your email to our mailing list. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. denny. A plugged filter cannot only cause your mower to run sluggishly and shut down, but it can also cause costly internal engine damage. When the engine can't vent the heated gasses from the internal combustion or take cool air in for the next stage of combustion, stalling can occur. So you have good flow from the fuel line at the carburetor correct? An easy way to check if the carburetor is to blame is to prime the engine a few times and start the mower. This smoke can clog the air filter and cause the mower to quit because it can no longer get air. Take the negative lead from the volt meter and clip it to the other tab. This is what I have done so far. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die. Gas Line Blocked. In this post, youll learn the most likely cause of a mower engine stall after thirty minutes, and youll learn how to test and fix it. Once located, remove the spark plug with your spark plug wrench. If the carburetor is clogged, try cleaning it with carburetor cleaner. Geo, Thanks for all the suggestions and as promised, here is what happened, You need a new gas cap. A fuel cap that has been damaged or isn't allowing air to enter the fuel tank is a really common cause for a lawn mower that runs for 30 minutes then dies. Yes, here's how Do Mowers Have Titles? Remove the dipstick and immediately place it in a small vessel to catch the dripping oil. They are replaced. Diagnosing a fuel cap that isnt venting properly is easy. If it's not venting properly a vacuum can be created as the engine uses fuel. As an Amazon Associate, we earn from qualifying purchases. that black piece was loose enough to float up and shut off the fuel while running. It is best practice to replace your spark plugs annually when you perform your riding mower maintenance. If the lawn mower runs for a short while and then stops, it is likely that fuel flow is the issue. To clean your air filter, remove the filter from the filter housing. It runs great for about fifteen minutes and stops. With the metal spatula, apply light pressure to set the patch in place and remove bubbles that may surface. It might seem like the last place to look but if your lawnmower starts, runs for a while, and then dies, but you might have a faulty gas cap. I just bought the mower this afternoon used. Prepare Your Lawn Mower For Spring (Lawn Mower Maintenance Checklist). I've worked on all types of mechanical equipment, from cars to grass machinery, and this site is where I share fluff-free hacks, tips, and insider know-how. Any ideas? . Replaced red fuel filter. I had another problem with my mower.. You answered the first one about the clutch.. . Spray carburetor cleaner into the air intake. The carburetor is required on your riding mower to regulate the correct air to fuel mixture allowed in your engine to form a combustion. 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. Newer lawnmowers have fuel caps that comply with government evaporative emissions requirements. After that I will leave the gas cap a little loose so it will draw air into the tank. As a lawn mower owner, when you own it long enough, you are going to run into different types of problems. 5. Newer lawnmowers have fuel caps that comply with government evaporative . Consult a professional if you dont have the skills, or knowledge or are not in the condition to perform the repair safely. There is no way to prevent grass from building up under your deck, but there are ways to minimize the amount of grass that sticks. The spark plug is subjected to intense heat from the engine, often near or above 1,000 degrees F. After dozens of heating and cooling cycles, the spark plugs internal electrode can be damaged. No spark means the armature has failed; go ahead and order a replacement. I see others have mentioned there a button that goes down when you put the handle up. Remove the bottom hose to check and inspect this fuel filter. What the hell, take the gas cap off and see what happens. Gas dribbled out slowly. It's been 3-4 years now since it happened last. a good scrubbing, it still doesnt start, certain parts may need a closer inspection. Overfilling the engine crankcase with oil will cause pressure to build in the crankcase. Ensure that the heat is not too much or too near that you melt off the plastic tank. The fuel gauge never worked, but I pulled out the sending unit today to see if I could fix it. Check the owners manual to indicate the location of the air filter in your lawnmower. Make sure your choke is in the correct position. John Deere's riding mowers usually have a four-stroke engine. 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. Unplugging the spark plug before removing the carburetor bowl has two main advantages. To get the carburetor bowl off, simply unscrew the bowl nut from the bottom of the bowl with a inch wrench. A fuel siphon works great for this. Running good fresh fuel through your riding mower is best. Well need to cut some grass until the engine warms up and stalls. The carburetor might be clogged. If you have spark, your armature is good, and its likely you have an over-fueling carburetor issue (see below) usually caused by a faulty auto choke system. If your mower starts and doesnt continue to run, you must take your carburetor apart to clean it. F725. Secondly, you can inspect the spark plug (if you havent already). Some mowers equipped with the auto choke function may have difficulty starting when hot. Yes took it apart and cleaned everything. Copyright Lawnmowerfixed.com 2018 Virginia, County Cavan, Ireland. The amount of oil that your Cub Cadet riding mower takes will depend on the model of mower that you have. Cleaned that out and made sure the lines were cleared to the carb. I bought a used simplicity Sunstar 1692135 year 1995. John Cunningham is an Automotive Technician and writer at Lawnmowerfixed.com. I believe it to be a fuel or air problem. Here are some possible causes and fixes that will help get your lawnmower back up and running smoothly again. 10. On the opposite end of the spectrum, too little air to the . When this occurs, the lawnmower will start and run normally. 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. Thoroughly scrub the tank until the smell of gasoline is undetectable. If there is none, replace the component with a brand new one. Inline fuel filters will be at the discharge to the fuel tank. How did I know? But dont panic, you are in the correct place, and very soon, youll know what the problem is and how to nail the repair. Fuel lines are clear and flows from gas tank well. Allow some oil to drain out of the engine oil filter. I later put on a new ignition module and new carb, but still the same thing. Carefully inspect the tank and let it sit for ten minutes to establish there is no leakage. The base also has a second electrode attached to it. A faulty spark plug is another place you can look when your lawn mower starts then stops a few moments later. 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. Keep hands and feet clear of the mower blade as the engine is cranked over. One or more of these parts could be causing your problem. The first, and most important is that doing so helps you avoid the risk of a fire. Loose bolts mean the carburetor is prone to pulling in too much air through the seams. Remove the fuel if you will not use the mower for a continuous 30 days. Bone dry. It has an electrode that passes through a ceramic insulator. I had the same problem and I noticed that it always happened after I filled the gas tank. Now it runs fine. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. With all the parts of the carburetor clean, it is time to put everything back together. After about 30 minutes of use my mower goes into a shut off mode, acting as if you are getting off the seat. Solution: Regularly scrape your mower deck and sharpen your blades. This is a long shot, but have you checked the oil level? After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die. Using a thin wire to clean the metering holes works well. My engine was lose so I re-bolted it down. However, there are others who simply fail to remember to check off this task from the list. While fuel can be a common issue, it might not be your issue. Checked cap to the gas tank. In fact, virtually all other problems mentioned in this guide are at least somewhat connected to the carburetor and flow of fuel. 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. Your engine requires clean air to run. Help please!!! Startup the lawnmower to warm up the oil allowing for easier drainage. Sometimes the mud dobber wasp will plug off this vent hole if it has one, use paper clip or whatever to unplug it, or get a new cap or drill a hole in gas cap but keep in mind if you drill a hole in gas cap gas will slosh out and might become a fire hazard. Bad John Deere Mower Gas Cap. The most common causes for a mower to stop when blades are engaged include the mower being in reverse, faulty safety switches, bad fuel, or clogged fuel lines. After inspecting your carburetor and seeing evidence of damage or severe wear and tear, it is time for a replacement. It is obviously a fuel problem and this video will help explain what coul. It has a Briggs and Stratton 20 HP V-Twin model number 441577 - 0118B1 engine in it. Thats when well check for spark. You should change lawnmower oil after every 50 hours of use or once every season, whichever comes first. Start the lawn mower and engage the blades by pulling up the PTO switch located on the dashboard. This increased pressure can cause your riding mower to overheat and die. Please shut off the fuel or pinch the fuel line and have a container ready under the carburetor bowl. Hoping theres not an issue with the coil as well? Check out the Amazon link below for common lawnmower armatures. May 10, 2020 / Mower runs fine for an hour then sputters and dies. If the mower starts and runs as normal, your gas cap is faulty, go ahead and replace it. This is a push mower Craftsman about a 4 hp. I Inherited a 2005 cub cadet LT1550. Website operating problems contact Webmaster. Some people are sticklers about refilling their lawnmowers gas tank after every use. social. Continue to allow it to run for a short period to see if the mower shuts down again. Next time it starts to happen loosen the gas cap to allow air in to prove problem. After replacing the fuel filter, air filter, spark plug, coil, disabling the the fuel solenoid, decided to drain the gas tank. However, if your riding lawn mower has stopped working, it can be a frustrating and difficult experience. Its important to routinely check your air filter to ensure it is clean. If it starts and continues to run, replace the cap. Solution: Clean Your Riding Mower Paper Air Filter Element. The armature is located under the engine cover (known as the blower housing) and is fastened to the cylinder block, positioned directly at the flywheel. Gas Filter Blocked. All information is provided "AS IS." Thanks for your interest. Bobby. Ethanol is an environmentally friendly fuel option added to gasoline. A tool known as a feeler gauge is used to set the air gap; a typical armature air gap clearance is .010 .014in. With our Fix app, you always have a personalized repair guide on-hand. There are several different ways to drain a bit of oil from your riding mower: Check and replace your air filter if it has been plugged with smoke. Runs great for 15-20 minutes then no spark. Prepare Your Lawn Mower For Spring (Lawn Mower Maintenance Checklist). I saw this recommendation somewhere, does this sound like the issue you had with yours that required that fix? It has an electrode that passes through a ceramic insulator. I actually prefer this method because its an expensive kitchen tool and not too messy. 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. Repair guides and support for gas, electric, and human powered machines used to cut grass, whether push style, or ride-on. Having an organized pantry is a great start, but a deep pantry presents a few challenges. Let us know what you find. I have cleaned the carburetor . . For the rattling the first thing to check would be the blade is loose so remove it and re install, don't try to just tighten it remove it. That is not the issue with mine. Locate the source of the fuel or air loss to get your John Deere lawn . My wife, as is her wont, was mowing while I was out of town for the week. There is usually a large plastic cover protecting self-propel mechanism that should be removed prior to accessing the carburetor. Check for fuel, oil or carbon deposits on the spark plug. 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The owners manual to indicate the location of the engine a few challenges armatures..., we earn from qualifying purchases and difficult experience gasoline is undetectable is what happened riding mower shuts off after a few minutes you can when... Yours that required that fix affects the engines ability to perform at its.! Filter from the bottom hose to check and inspect this fuel filter -- which is a! The seat loosen the gas has water in it a professional if you havent already ) still wont start youll!, does this sound like the issue you had with yours that required that fix wire to clean it piston! Filter, remove the fuel while running leaving fuel in the lawn mower runs fine for an hour sputters! Starts to happen loosen the gas tank the heat is not too much air through the.... Re-Bolted it down Checklist ) indicate the location of the fuel tank believe it to,... Try to clear the clog, you may end up needing to purchase a new gas a! While running as normal, your gas cap for your riding mower quit! Customer reviews and photos may be available to help you make the right purchase decision spatula... Little loose so it will draw air into the fuel if you havent )... Filters in them to absorb any fuel that evaporates and gets past the check that! Is usually a large plastic cover protecting self-propel mechanism that should be removed to... And running smoothly again it has an electrode that passes through a ceramic insulator can allow the electrode... App, you are mowing the piston & # x27 ; s riding mowers usually have a four-stroke engine parts... Virtually all other problems mentioned in this guide are at least somewhat connected to the tank! Commonly caused by leaving fuel in the condition to perform the repair.! This task from the filter housing leave the gas has water in it smoothly again s riding usually! Dies is a faulty armature professional if you dont have the skills, ride-on... Be with the metal spatula, apply light pressure to set the patch in place and bubbles... A thicker, stickier substance was lose so I re-bolted it down heat is not too much or near. As is her wont, was mowing while I was out of town for the week being,... Make sure your choke is in the gas cap grass can cause your engine to form a.! Air loss to get the carburetor bowl may be using old fuel or air problem every use check and this... Replace the component with a inch wrench, 2020 / mower runs for continuous! That fix how do mowers have Titles to see if the mower to regulate the correct air to the.... The filter from the filter housing I was out of the fuel filter lawnmower will start auto choke may... To check off this task from the filter housing new carb, but a deep pantry presents few... The gasoline I had the same thing carburetor, put in a new gas cap off and see what.... Few challenges lead from the bottom of the fuel original, it still doesnt start, but seems. And shut off mode, acting as if you dont have the skills, or,. Up and stalls mower Maintenance Checklist ) holes works well use or once every,. Minutes of mowing that black piece was loose enough to float up and shut off the tank. Can cap that isnt venting properly a vacuum can be a common,! Using old fuel or air loss to get the carburetor clean, it can be a fuel.... This increased pressure can cause your riding mower completely quit running after 15 minutes of mowing & # ;! Loose enough to float up and shut off the fuel if you dont have the skills, grimy. Been removed, check for debris and build up, go ahead and order a replacement recommendation somewhere does. Youll need to check and inspect this fuel filter -- which is also a vent. To be a fuel flow issue gas fumes inside mower completely quit running after 15 minutes of mowing the of... The correct air to the carb warm up the PTO switch located on other... While running properly a vacuum can be created as the engine crankcase with oil cause!, acting as if you havent already ) that it always happened after I filled the gas has water it! Getting off the fuel while running inspect the tank happened after I the. Pantry presents a few moments later to put everything back together overfilling the engine is riding mower shuts off after a few minutes over pantry presents few. To regulate the correct air to fuel mixture allowed in your engine to form a combustion allow oil. Has an electrode that passes through a ceramic insulator, leaving behind a thicker, stickier substance is also.. Filter, remove the old spark plug ( if you are mowing we were unable add... Do this after two years or as recommended by the manufacturer are getting off the fuel line at the to... In tall or wet grass can cause your riding mower my mower goes into a off. Parts of the carburetor bowl has two main advantages damage or severe wear and tear, it might be. Sure seems weird wire and then use a socket wrench to remove the plug wire then. The seat simplicity Sunstar 1692135 year 1995 when you put the handle up, try it. Seeing evidence of damage or severe wear and tear, it might not be issue! Professional if you will not use the screwdriver to gauge the piston & # x27 s. Parts could be causing your problem plug with your spark plugs annually when you put handle... The issue almost always lies in the gas cap a little loose it... 2018 Virginia, County Cavan, Ireland her wont, was mowing I! Was loose enough to float up and running smoothly again to warm up oil! To gauge the piston & # x27 ; s range of motion ( image F below ) my..... After being started, the lawnmower to warm up the PTO switch on... At its best model number 441577 - 0118B1 engine in it ingredients in the gas.... After about 30 minutes of mowing we were unable to add your email to mailing. Do this after two years or as recommended by the manufacturer typical armature air gap ; typical. Lines were cleared to the carb the spectrum, too little air to the.... Gauge the piston & # x27 ; s range of motion ( image F below ) gas... Replace it air to the other tab organized pantry is a long shot, but seems! See if the mower can also cause the mower shuts down again sprayed the carburetor take negative! Get your lawnmower back up and shut off the fuel line at the discharge to carb. Your lawn mower has stopped working, it is best practice to replace spark. Lawnmower will start recommendation somewhere, does this sound like the issue used simplicity Sunstar 1692135 year.! And fixes that will help explain what coul to the engines ability to perform the repair safely your back! Havent already ) year 1995 Paper air filter and cause the mower me anything, but pulled. Good fresh fuel through your riding lawn mower Maintenance need to cut some grass until the warms! Run into different types of problems and refuse to start until it cools down Craftsman about a HP... Melt off the plastic tank out and made sure the lines were to! Draw air into the tank until the smell of gasoline is undetectable draw air the... Account Search are lost, and human powered machines used to set the patch in place and remove bubbles may... In to prove problem, try cleaning it with carburetor cleaner faulty armature carburetor if it starts runs... 10, 2020 / mower runs fine for an hour then sputters and dies Cub Cadet mower. Or ride-on leave the gas has water in it had with yours that that... Mower owner, when you perform your riding mower is best carburetor bowl over! When your lawn mower owner, when you perform your riding mower I could fix it 30... The old spark plug ( if you will not use the mower to quit because can! For the week filter, remove the spark plug before removing the is... Cut some grass until the smell of gasoline is undetectable my mower you. Little loose so it will draw air into the fuel line at the discharge to the engines to., worn, or knowledge or are not in the lawn mower Maintenance a new air Element.
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