Lawn mower shuts off when hot

Toro push mower model 20055 with Briggs & Stratton engine model 126T0-0206-B1. Bought in July 2007 so 13 years old with ~150 hours on mower. For a couple years now, the mower won't restart when hot if I have to stop & refill with gas, i.e., it's shut off for more than 5 minutes). I have to let it cool off for an hour or so.

Lawn Mower Shuts Off When PTO Is Engaged. This is an issue that’s common to many lawn mower owners. There are numerous reasons why a lawnmower may shut down when the PTO is engaged. The primary reason could be that the cutting deck is in contact with objects such as sticks or rocks and resists rotation.2014 Craftsman R1000, #247.290000 - Runs rough when it gets hot after about 20 minutes then quits. Will restart and run after it cools down, I replaced spark plug, fuel filter, ignition coil, cleaned carb, drilled a hole in the gas cap to prevent vapor lock, and tested the carb solenoid which is working. I am stumped! If it has a fuel solenoid ...One of the main reasons why your John Deere mower might quit when hot is because there is too much oil in the engine. When an engine has more oil than it needs, it can become overheated and cause the mower to shut down. To fix this problem, you should drain some of the excess oil from the engine.And, to prevent stalling issues when hot, Consumer Reports recommends avoiding moisture in fuel tanks. Ethanol in the gas can pull in moisture, creating humidity and rust that can lead to blockage in pipes. So, if your lawn mower cuts out when hot, understanding the root cause can help rectify it. This will save you time and money in the long run.1. Jun 27, 2014 / 19 hp kawasaki engine stops running after it warms up. #3. Have had the same issues. It could be electrical, but I would try these fuel issues first [there cheaper, and work more times than not]. loosen fuel cap, replace fuel filter, blow air through fuel supply line [before filter] back into fuel tank, remove fuel shut off ...

A Husqvarna lawn mower will not stay running when there is a lack of air, fuel, or spark. A plugged air filter, bad fuel, water in the fuel tank, a bad spark plug, and a faulty ignition coil can cause the mower to stop running. Keep reading for a complete list. Take safety precautions when working with your Husqvarna mower as outlined in your ...Exmark zero turn stops when it gets hot. Have replaced coils. Will start after 10 minutes. ... Lawn Pro. Joined Aug 2, 2013 Threads 11 Messages 5,130. ... Consult equipment operator's manual and read safety instructions before operating or servicing any mower or equipment or attempting any task. When you click on links to various merchants on ...Once you have the spring off, take a socket wrench and remove the shoulder bolt from the air vane. Usually, this is the only bolt that holds the air vane to the lawn mower. Next, take your new air vane and place it onto the lawn mower. You will want to make sure that you position the new air vane correctly on the choke arm.2. Hot Battery or Mower Circuit. When the Ego battery or mower circuit gets excessively hot, the mower will shut down as part of its safety system. SOLUTION: Let the mower and battery cool before you attempt to restart it. Move the mower out of direct sunlight while allowing it to cool. 3. Battery Not Making ConnectionReasons Your Husqvarna Lawn Mower Dies. 1. Lack of Gas. Everyone knows if you don’t have gas in the tank, your gas-powered lawn mower will not run. However, when you’re in the middle of trying to figure out why your Husqvarna died, you can forget the simple, most obvious item to check: gasoline. 2.The symptoms of a bad fuel solenoid include the engine stopping or suddenly, a switch that trips, and an engine that stalls. Also, it may disable the fuel pump leading to a no-start condition that makes it hard for the engine to start. 1. Engine Shutting Off. The mower engine runs on fuel.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. Make sure that the fuel cap is in good condition and has a vent that works properly. Lastly, take a look at the carburetor. This is where all of the air mixing happens.Background: I recently picked up a used 10 year old MTD lawn tractor with a 18.5 hp Briggs & Stratton TwinII I/C engine (model 42A707). I have replaced the fuel & air filter, both spark plugs, and changed the oil & gas. I also did a complete carburetor rebuild, including the fuel pump membranes/gasket. It runs OK, but when I shut it off I can't ...

5 posts · Joined 2011. #1 · Apr 5, 2011. Hi all: I have a John Deere X485 - 25HP Kawasaki EFI that has problem running, well more when you first start it after its hot. Yesterday our temps reached 80 degrees and this mower was used on for about 3 hours. Once it was turned off, it was hard to start and and when it did start it surged no matter ...American Lawn Mower Company 1204-14 14-Inch 4-Blade Push Reel Lawn Mower, Red. 4-blade reel mower with a cutting width of 14" and durable 8.5" polymer wheels for maximum maneuverability. Lightweight at only 19 pounds. Reel Lawn Mowers are great for small lawns..Deluxe hand-reel mower ideal for most turf grasses. Reasons Your Craftsman Lawn Mower Starts Then Dies. Your Craftsman Lawn Mower may start and then die when your lawn mower is unable to regulate the air-to-fuel mixture required by the engine to form combustion. This could be due to a dirty carburetor, bad fuel, plugged air filter, broken fuel pump, plugged fins, or other components that can ... Posted: Sep 28, 2016. Options. Albert, A lot of lawn mowers have a problem with the gas cap not venting properly and will quit running after running a few minutes as you described, try running with cap removed or very loose ( be-careful of splashing fuel). Other things that could cause this issue are bad fuel, weak/colapsed/kinked fuel line ...

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WHY won't the poster's mower start? Offhand, I can think of several possible causes: 1. If the mower stopped because it was out of gas: Maybe there was some floating dust or debris on top of the gas that got sucked into the carburetor. If this is the case, you'll probably need to get a spray can of "starting fluid." Take the air filter off.May 30, 2020 / Landlord with 18HP Briggs Vanguard shuts down when hot. #6. The first thing I did was removed the shroud and blew out all the fins, housings, any debris under or around the engine, and in the chassis around the engine compartment. And when it stops, it doesn't sputter, its just like shutting off the key.Vapor Lock. One of the causes of the situation when a lawnmower stalls when hot can be with the vapor lock. Unfortunately, one that is often overlooked, is when the hot gases inside the fuel tank cannot properly vent. The gas flow in the system can reverse, due to pressure, hence, causing the gas to leave the carburetor and shutting the engine ...While lawn mower weights vary significantly depending on the lawn mower, 30 pounds is a standard weight for a push lawn mower, and 105 pounds is a standard weight for a power lawn ...

29 Jul 2021 ... Lawn Tractor Runs Then Dies - Step By Step Repair Recently an almost new riding mower came in the shop. Customer says it runs for about five ...Vapor Lock. One of the causes of the situation when a lawnmower stalls when hot can be with the vapor lock. Unfortunately, one that is often overlooked, is when the hot gases inside the fuel tank cannot properly vent. The gas flow in the system can reverse, due to pressure, hence, causing the gas to leave the carburetor and shutting the engine ...A Husqvarna lawn mower won't start because the engine isn't getting the air, fuel, or spark required. This is due to a plugged air filter, dirty carburetor, bad safety switch, faulty gas cap, plugged fuel filter, clogged fuel line, bad starter solenoid, or bad fuel pump. There are many items on a mower that can fail and cause it not to start.4. Apr 29, 2013 / PTO mower won't engage when hot. #3. Just like the title states. The PTO does not engage the mower deck once it becomes hot. Either from the safety feature from going in reverse or from manually shutting off the mower deck. Im talking about the blades spinning. The tractor itself runs perfect.A Husqvarna lawn mower will not stay running when there is a lack of air, fuel, or spark. A plugged air filter, bad fuel, water in the fuel tank, a bad spark plug, and a faulty ignition coil can cause the mower to stop running. Keep reading for a complete list. Take safety precautions when working with your Husqvarna mower as outlined in your ...2. Hot Battery or Mower Circuit. When the Ego battery or mower circuit gets excessively hot, the mower will shut down as part of its safety system. SOLUTION: Let the mower and battery cool before you attempt to restart it. Move the mower out of direct sunlight while allowing it to cool. 3. Battery Not Making Connection21"push mower/w bagger Stihl KM 90 w/trimmer,tiller, and hedge trimmer Husquvarna BT130 MTD 3.5 HP edger AgraFab 17 cb ft trailer Precise-Fit Areator Random dethacher Precise-Fit lawn sweeper "Never Give Up! Never Surrender!" ... Put a new muffler on and never shut off again in the heat. 2006 Chevy 2500HD 4x4 1996 GMC 2500 4x4 Toro Z500 w ...Reasons a Simplicity Lawn Mower Overheats & Quits When Hot 9. Mower is Running Rough or Sputtering. A Simplicity lawn mower that runs rough or bogs down can be due to a lack of air, ... Replace the shut-off valve. Weak Fuel Filter: Fuel can degrade plastic in the fuel filter or the plastic housing can crack. Replace the fuel filter.If you are going to test the coil, run this test after it shuts off on you when hot. '03 Chevy Silverado 2500HD 4x4 6.0L Utility Truck '99 Ford F350 4x4 7.3L Diesel 11' Dump Truck4,655. Apr 28, 2018 / Toro zero turn just shut down like light switch turned off. #4. 1) Remove spark plug, put it back into plug wire, hold plug metal to touch engine to ground it, have someone crank engine a couple rotations, watch spark plug end to see if it sparks. Should see a nice spark there.5. Kohler Engine Keeps Shutting off. Kohler lawn mower engine keeps shutting off is a common lawn mower problem. Shutting down before you finish mowing can be caused by dirt, rocks, or other debris getting caught inside the engine. Dirt and dust can build up in the air filter, which is located near the air intake on the top of the engine.

Here are the steps to test your electric lawn mower power switch: Disconnect your lawn mower power source. Remove the power switch & power lever housing cover. Remove the power switch from its mounting position. Manually press and release the …

You can find issues such as hot start failures when putting the wrong type of spark plug into your mower. Check the spark plug model number or plug code you require. You must check you have a spark from the plug before replacing it. If you get a good spark, the issue may be something else. A poor spark can be a sign of a worn plug; the gap is ...A lot of the time, you might only realize that your lawn mower is overheating when it shuts off and stalls. But, sometimes, you might notice your lawn mower struggling as it's getting ready to die. ... The main thing that causes your lawn mower to stop working when hot is the over-expansion of the internal components of your mower engine. For ...20 May 2014 ... If you're experienced with it ignore this: Are you letting it warm up? Give it 30 secs and turn choke off, both mine need a little warm up.Briggs and Stratton dies when hot. Hey, so I am stumped on what this issue is. I have an 82 Briggs in my mower, 252707-0131-01. The issue I have is the mower will start fine and runs good. About 15-30 minutes into mowing it will sputter and die. At first I thought a fuel issue, but once it sits about 30 minutes it will fire back up and run ...Hi my toro 22" recycler lawn mower will crank run for about 10 minutes and shut off after about 10 minutes it will crank again and do the same thing. I have cleaned the carb., changed the coil, draine …A Snapper lawn mower may start and then die when old fuel has clogged the fuel system restricting fuel to the engine. A plugged air filter, insufficient oil level, plugged mower deck, bad spark plug or faulty charging system can also can a Snapper mower to shut down after running. Keep reading for a complete list of items that can cause your ...A lot of the time, you might only realize that your lawn mower is overheating when it shuts off and stalls. But, sometimes, you might notice your lawn mower struggling as it’s getting ready to die. ... The main thing that causes your lawn mower to stop working when hot is the over-expansion of the internal components of your mower engine. For ...A Grasshopper lawn mower won't start when there isn't sufficient air, fuel, and spark. This can be due to a plugged air filter, clogged fuel lines, a plugged fuel filter, a dirty carburetor, old gasoline, a bad fuel pump, faulty spark plugs, a bad switch, or a dead battery. Keep reading for a complete list of items that can cause a starting ...

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50. Posted: Apr 16, 2011. Options. Please tell us more to help narrow down what the problem is. 1) It is not receiving enough gas or the motor isn't warmed up enough. 2) You are not pushing in on the clutch when engaging the blades/lowering the deck or not pushing in on the clutch far enough. 3) You are engaging the blades/lowering the deck ...I recently bought a 10 year old lawn tractor. It has a 17.5 hp Briggs and Stratton OHV one cylinder engine. After the engine heats up, it begins to miss. The miss doesn't happen often at first, but as the engine gets hotter, the miss gets worse until it finally stalls out. After a couple of minutes, I can start again, only to have it miss and stall a couple minutes later. First, I tested the ...Posted: Jun 4, 2016. Options. This is most likely a safety switch issue. Usually the seat safety switch will cause this problem. The mower dies because it thinks nobody is sitting in the seat, and shuts off for safety reasons. I have read this mower also has issues with the rollover safety switch (shuts off mower if it thinks it has rolled over).A Hustler lawn mower may start then die due to a plugged fuel filter, clogged fuel line, bad fuel pump, dirty carburetor, plugged air filter, bad spark plug, incorrect engine oil level, bad gas cap, plugged mower deck, or bad gasoline. Keep reading for additional items that can cause a Hustler walk-behind, zero-turn, or stand-on to quit running.Symptom-1: Mower Shuts Down Immediately. If the ignition coil is bad, it may cause the engine to shut down immediately or run very poorly. Depending on the severity of the problem, the engine may not even start. If the ignition coil is bad, it will not effectively transmit the spark necessary to ignite the fuel mixture.Poulan Pro lawn mowers are made by the Husqvarna Group and produced in McRae, Georgia. Poulan was founded in 1944 as an American chainsaw company based out of Shreveport, Louisiana...Vapor Lock. A simple, often overlooked, trigger for an engine stall occurs when the heated gases inside the fuel tank can't vent properly. The pressure causes the gas flow to …Here are the steps to test your electric lawn mower power switch: Disconnect your lawn mower power source. Remove the power switch & power lever housing cover. Remove the power switch from its mounting position. Manually press and release the switch button a few times.Turn on the fuel supply if the fuel shut-off valve has been used previously to shut it off. Bad or Old Fuel: Drain the fuel tank if it is older than 30 days. Refill it with fresh fuel mixed with a fuel additive to clean the fuel system and reduce moisture. Incorrect Operation: Ensure the bail lever is engaged when starting the mower. Plugged ...Reasons Your Husqvarna Lawn Mower Dies. 1. Lack of Gas. Everyone knows if you don’t have gas in the tank, your gas-powered lawn mower will not run. However, when you’re in the middle of trying to figure out why your Husqvarna died, you can forget the simple, most obvious item to check: gasoline. 2. ….

A Husqvarna riding mower commonly dies when blades are engaged because the grass box is not fully closed. Other possible causes include: Grass Box Misaligned. Grass Box Sensor Wiring Loose. Grass Box Sensor Faulty. Bad Gas. Carburetor Dirty. Carburetor Faulty. That's a list of all the most likely reasons that the engine dies as you apply the ...Therefore, it is best to make sure whatever cord you are using is rated for your electric lawn mower and capable of powering it safely. 4. Your EGO Battery is Excessively Hot. When the EGO battery gets excessively hot, the mower will shut down. You will need to let the battery cool before you attempt to restart it. 5.50. Posted: Apr 16, 2011. Options. Please tell us more to help narrow down what the problem is. 1) It is not receiving enough gas or the motor isn't warmed up enough. 2) You are not pushing in on the clutch when engaging the blades/lowering the deck or not pushing in on the clutch far enough. 3) You are engaging the blades/lowering the deck ...Husqvarna Mower Turns Over But Won't Start. 1. Stuck Choke or Incorrect Choke Setting. The choke is a component that restricts the amount of air getting to the engine when engaged. This is needed when starting a cold engine. A cold engine requires a rich fuel mixture with a high concentration of gas and less air to start. A Honda lawn mower may start and then die when bad fuel clogs the fuel system; a plugged air filter or incorrect choke position restricts airflow; a spark plug or coil is bad, or the mower overheats from an incorrect engine oil level or a plugged mower deck. I put together this guide to help you get your Honda mower up and running again. 25. Messages. 1,579. Jun 2, 2020 / Craftsman lawnmower shuts off tried everything. #3. Two general things I'd try. (1) Pull the spark plug and inspect. If black and sooted up you're way too rich, check the choke or float level and needle valve. If white and clean get back into fuel supply.3. Compression. Piston rings, valves and cylinder head gaskets all work together to create compression. If there is any problem here, then the engine won't run. These three components lead to common problems, and by following the "gas shot test" below, you will get more answers to why your Toro Recycler 22 won't start.May 10, 2008 · My mower would quit after 10-15 minutes of running. It all started during early spring maintenance when I changed the spark plug, oil, oil filter, FUEL FILTER, and air filter. After all that it started to stall. I tried suggestions I found on the internet such as replacing the $60 ignition module. Unequal tire pressure can cause your mower to pull to one side. Check tire pressures and keep them filled to the manufacturer's spec. Tires on each side of your mower require equal pressure. Bad dampers on zero turn. Bad dampers will cause your mower to jerk to one side when moving forward. Replace with a new damper.11. Messages. 5,130. Aug 8, 2013 / Husqvarna zero turn dies when blades engaged (or rrandomly while mowing) #4. Well it can go bad, but a voltage drop can make it shut off the fuel, i.e. a drop in voltage from a low voltage regulator output and a high draw. of voltage from the electric pto. One easy way to isolate it is to run a temporary ... Lawn mower shuts off when hot, Maintaining your lawn mower is essential for keeping it running smoothly and efficiently. One of the most important parts of lawn mower maintenance is ensuring that you use the rig..., I remembered having a similar issue once when I left the mower in the hot sun one time. When it happened last time, moving the mower to the shade and cooling off the battery fixed the situation. so this time I moved the mower to the shade I also brought the battery in the house and put it in a 34'F refrigerator for about 3 hours., This is Why Your EGO Electric Lawn Mower Stops Running. 1. Dead Battery. A battery-powered lawn mower runs off the power provided by the battery. Obviously, it won’t run when the battery is dead. When your EGO mower just stops running, the first thing to do is check the battery. Your EGO may have a LED lighting system showing the battery ..., john deere 314 lawn tractor. Runs great without pto engaged. With electromagnetic pto engaged and mower deck operating tractor will run for approximately 20 mins. then it will die as if shut off. When … read more, Messages. 1,933. Sep 30, 2017 / Mower running, turned off, got back on and will not start. #4. Batteries sometimes just totally fail. Check the battery voltage, and, if OK, try to monitor voltage when you attempt to start. Otherwise, bad key switch or safety switch. Good luck., 55. Messages. 14,769. Jun 4, 2018 / Toro personal pace mower won't restart after engine is hot. #5. Next time you have to restar your mower hot, check to see if the choke is still closed. You have an auto choke system and the choke may not be staying open when hot. Second, if the choke butterfly is open, check for spark, the coil may have a hot ..., This will make the engine of your mower shut off as well. Let me explain how. Loose bolts cause air leaks which in turn make the engine pull in excess air from the outside. That way the tiny parts of the engine expand as the engine heats up gradually. Ultimately, you got a poorly running engine that will ultimately shut off., If the ignition coil is bad it will melt further resulting in the engine overheating. Eventually, the Briggs and Startton riding mower shuts off when hot. Now, let’s learn what are the possible solutions to resolve such issues on your mower. 6 Fixes To Use When Briggs And Stratton Lawn Mower Overheats And Dies 1., Common Causes of Afterfire: Shutting off the engine at high RPM, causing fuel to pump through the engine for ignition. If equipped with an anti-afterfire solenoid, shut engine off at full throttle. Small engine muffler type and manufacture. Carburetor adjustment may not be properly set for correct engine performance., A lawn mower turns over and won't start when it isn't getting air, spark, or fuel due to a plugged air filter, incorrect choke setting, bad spark plug, plugged fuel filter, clogged fuel line, bad fuel pump, dirty carburetor, or old gas. Remove the spark plug wire prior to performing repairs on your mower. Follow the specific safety ..., Husqvarna’s zero-turn mower shuts off when arms are engaged, most likely due to an issue with the mower’s safety safety switch or the seat switch. ... and leave it there for a few minutes for the engine to warm up. Once done, lower the mower deck to the desired cutting height and push the lever to the right-hand side of the steering wheel ..., A Gravely lawn mower will start and then die when old fuel is restricting fuel in the fuel lines, carburetor, and fuel filter. A clogged air filter, bad ignition coil, dirty spark plug, plugged mower deck and plugged cooling fins can also cause a Gravely mower to shut down while running. Stay safe while diagnosing and repairing your Gravely., Black smoke may indicate that the mower is "running rich," or burning too much gasoline. Your lawn mower's carburetor regulates the ratio of gasoline to air mixture. If the carburetor isn ..., An important part to mention is main jet. It is the most common reason a lawn mower starts and then dies. That is why you should carefully clean it. Poke a bread tie wire through the small hole of the main jet and clean it up. Also, you need to be careful not to overtighten this bolt., Here's how you start each version of the GCV 160: Flywheel Brake/Remote Throttle. Starting: Move the throttle control lever to "CHOKE.". Move the flywheel brake control to "RUN.". Use the recoil starter. Move the throttle control away from "CHOKE" once the engine is warm. Stopping: Move the throttle control to "SLOW."., Therefore, it is best to make sure whatever cord you are using is rated for your electric lawn mower and capable of powering it safely. 4. Your EGO Battery is Excessively Hot. When the EGO battery gets excessively hot, the mower will shut down. You will need to let the battery cool before you attempt to restart it. 5., Published: 2019/01/23 at 12:37 pm. There may be lots of reasons a lawnmower won't start, but you are lucky; your mower is telling you clearly what the problem is. A dirty carburetor is the most common cause of a lawn mower that starts and then dies. Other possible causes include: Stale/Dirty Gas. Faulty Choke. Gas Filter Blocked. Gas Tank ..., Messages. 24,705. Jul 1, 2016 / Ferris AS2000Z motor shuts off. #3. There are 2 types of safety circuits. One prevents the engine from cranking if there will be a load on the engine. the other kills the engine should the mower register abnormal operating conditions. The latter uses a variety of switches in different combinations., 1. Bad, Old, or Wrong Fuel. Running good fresh fuel through your riding mower is best. Gasoline can begin to break down and become less effective as soon as 30 days after purchase. Ethanol in your gasoline along with the moisture it attracts can gum up the fuel system causing clogs. When this happens, your lawn mower starts then dies., Murray lawn mowers are owned and made by Briggs & Stratton. They are advertised as basic, no-frills lawn mowers that feature Briggs & Stratton engines., Clean or replace the air filter. When you mow, dirt and debris gets sucked up into your machine. That's why there's an air filter on it. But if your filter has become full and dirty, the debris may also work its way into the engine and your lawn mower will not start. Clean or replace the dirty air filter and change out the contaminated fuel., 10,059. Jun 10, 2013 / Scag Mower Fuse Problems... Please Help!!! #2. Worked on turf tiger back in May, that would blow the first fuse about 45 minutes into mowing, and would get shorter between fuses blowing the longer he mowed, until they would blow about every 5 minutes. Ended up having an intermittent short in the electric clutch., Here's why this happens and what you can do: • Dirty Air Filter on Your Lawn Mower: Clean or replace. • Cutting Tall Grass: Raise the cutting height on your lawn mower. • Dirty Spark Plug: Clean or replace. • Build Up of Clippings & Debris: Clean underside of your lawn mower deck as noted above. 4., Dec 6, 2021 · So let’s go over these in detail. 1. Obstructed Fuel Cap. This is by far the most overlooked reason why your mower heats up. An obstructed fuel cap may result in venting failure. As a result, fuel won’t enter into the carburetor. This causes the engine to not receive any fuel and shut off due to overheating. , A Kobalt electric battery lawn mower won't start when it doesn't have sufficient ... When your Kobalt battery gets excessively hot, the mower will shut down. The mower has a protection system that shuts the mower off when the battery gets too hot. ... The mower will shut off when you release the safety bar. 7. Siderails are Not Fully Extended., 7,412. May 5, 2015 / Briggs and Stratton 6hp will not start when hot? #2. Post your model, type, & trim numbers, xxxxxx, xxxx, xx. Check air filter for replacement, also engine oil., 66. Sep 21, 2010 / Can't start Kohler engine after it get's hot. #3. cfhartman said: can't start Kohler engine after it get's hot. We have two tractors at a cemetery were I volunteer to help out. Both tractors have Kohler Command 20 two cylinders engines. The one after you run it and it get's hot and shut it down you can't get it started again ..., Step Four - Remove the Carburetor Bowl for Cleaning. Remove the carburetor bowl and clean all parts thoroughly. To get the carburetor bowl off, simply unscrew the bowl nut from the bottom of the bowl with a ½ inch wrench. Once the bowl has been removed, check for debris and build up. Clean accordingly., When you have dirty, clogged air filters, you starve the engine of oxygen, resulting in a reduction in power, increased fuel consumption, flooding of the carburetor, and lawnmower sputtering. For an optimally functioning lawnmower, you need to clean the air filters. If your mower has foam filters, wash them with hot water and soap then squeeze ..., If your lawnmower makes loud bangs or pops on shutdown, afterfire may be the problem rather than a backfire. Backfires typically describe a bang or explosion while the engine is running or as it is shutting down. Afterfire happens after the engine has stopped. Neither is harmful or dangerous but do indicate something may be wrong., Start by checking the safety switch under the seat. Test the seat switch by sitting on the mower and engaging the blades. If the engine shuts off, the seat switch may need to be replaced. Inspect the fuel level and top it up if necessary. Check the spark plug and clean or replace it if needed., 01 - Lawn Mower Carburetor. The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to stall., 64. Messages. 24,705. Apr 22, 2019 / Z425 2007 year model mower keeps shutting off when i engage the pto. #3. Start the engine, set the parking brake & get off the seat. If the engine stops the seat switch is faulty or the wires to the seat switch are shorting to the frame. The safety circuit is a ground circuit so if it shorts to ground there ...