I have a 1993 model Craftsman (917.257560) mower. It causes the blades to get imbalanced which produces noise, vibration and makes the lawnmower shakes and rattles. Clutch works fine also, and everything else works fine … Decide what kind... How Long Can You Stay In A Hot Tub? You can transform the look of any room in your home with recessed lighting. If your mower dies when your turn the blades on then STOP - don't take it to the shop yet! Ask Question Asked 4 years, 4 months ago. If your troubleshooting hasn’t worked out, or if you notice additional problems that require attention, calling a professional is a smart move. Of course, it’s worth pointing out that many people take this as a sign that it’s time to start looking for a new mower. Due to this off-balance rotation, the lawnmower starts shaking or vibrating. Reinstall them properly using a spanner and the user manual. You can simply repair or fix the damaged crankshaft by following the mentioned steps; We hope this guide will help you out in identifying the symptoms and causes of excessive vibration in your lawnmower. It runs and mows but it runs rough. Scrape the grass off using a paint scraper. From what I can see the only safety switch that would kill your engine when engaging the blades is your seat switch. February 14, 2020 By Andrew Leave a Comment. Did you recently mow through some dust or some particularly sticky weeds? The heavy side will drop lower than the other side. As EricG said, just jump across the contacts on your seat switch. Push the switch to disengage the blades. We've replaced all the filters and fluids and spark plug. That’s why a sputtering mower can be a nightmare for people who get attached to their lawncare equipment. Sometimes when blades strike with some hard material (stone, rock, or hard root) on the ground, it can also disbalance the blades or any other damage to them. You can simply fasten the blade through the center hole on a peg or a nail in a wall. Lawnmowers, for many homeowners, are like a best friend. I checked the seat switch and that was ok. In most cases, you can expect it to be an issue involving maintenance, belts, safety switches, pulleys, or just a clogged mowing area. Solution: You can take your mower to a small engine repair shop to have the carburetor removed and cleaned. Both tractor mowers and push mowers can have belts that go bad. So, the cases may vary in some way but the reasons are pretty much the same. It starts and runs fine but when I engage the blade it dies. Always start the mower on a flat surface that's obstacle free and then engage the blades before moving the mower into tall, thick grass. If any of these are true, you may need professional help: Having a lawnmower that sputters out the moment blades start being put to use is annoying, but it’s a common and fixable issue. There’s nothing like a relaxing soak in a hot tub. Seems like it bogs down the engine when blades are engaged. Any ideas? Unbalanced Blades – Why Lawn Mower Shakes Violently, How to fix pollute blades – Why Lawn Mower Shakes Violently, How to fix unsharp blades – Why Lawn Mower Shakes Violently, How to fix it – Why Lawn Mower Shakes Violently, 5 Best Zero Turn Mower for 3 Acres [2021 Reviewed], How to Start a Riding Lawn Mower With a Screwdriver | Without a Key, 7 Best Zero Turn Mower for 10 Acres [Reviewed 2021], Top 7 Longest Lasting Zero Turn Mower 2021 Reviewed. You may not face any such trouble while mowing on the level ground, but while mowing on the uphill or slope, it may sputter and sometimes lose power when blades engaged. It has the right oil level, new battery and gas. link to Why Does My Lawn Mower Sputter When Blades Are Engaged? You need to remove the complete engine step by step to replace the bent crankshaft. If you leave the seat and the blade is engaged, the mower will turn off. Is Your Lawn Mower Sputtering? Much like the belt’s positioning, having poorly positioned or faulty pulleys can easily cause a motor to sputter the moment a mower hits grass. Your mower engine should be serviced at least once per season, ideally in the spring. Whether you're looking for advice on furnishing your living room or the next outdoor DIY project, we've got you covered. We use cookies to give you the best possible experience on our website. Paper air filters will need to be replaced. It provides an opportunity to refresh, unwind, and to clear your mind of the day’s stresses. If it is, inspect it from damage. Everything seems to run fine until the blades are engaged. Though it’s common to worry about a favorite mower being “beyond repair” due to this issue, the truth is that most lawnmower problems are reparable—this one included. Though “the Big Four” are the most common reasons for a sputtering motor, there are other causes that could make a motor run foul. Many mowers are designed to sputter and shut down if there isn’t enough fuel to handle the work needed to cut the grass. Therefore, the value over .003″ verifies the crankshaft damage. If this occurs, there are multiple parts to check, such as the switch, belt, and pulley. Its an old Toro Professional from the 90s. Your email address will not be published. - Riding Mower The vast majority of these situations happen with mowers that are several years old or older. Attach the dial indicator to the deck and placed it on the crankshaft. Follow our repair guide to help you better identify and fix your problem accurately. Tune-up kit includes: oil; plug; air filter; fuel filter (if fitted); new blade (optional). Lawn mower dies when blades are engaged. You may have tipped your mower to unclog the chute, to change the blades, or clean out the deck. The carburetor might be clogged. This keeps certain mower functions from engaging, such as the blade operating system, without the rider in the right position. Try continuous sharpening by removing extra metal, till the blades become stable and come at the equilibrium position. A tune-up is important to the life of your mower. Some of these causes can include…. Run the mower without blades and be careful to notice the sound and the shaking after their removal. Drain the excess fuel if needed, just to prevent fuel or oil from leaking through gaps. The blade belt could also have jump over one of the belt keepers too. Most of the time, the lawnmower vibration is the cause of this bent crankshaft. Changed oil,changed plugs ,changed air filter,washed ,air tires. The blade should have a small amount of drag because of the electric clutch but still should turn. But in a critical situation, our guide will help you to fix and overcome the shaking issue in the future. ). Turn the blades off and it runs and drives fine again. LawnMowerAdvice is a participant in the Amazon Services LLC Associates Program, an affiliate advertising a program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. It runs fine when blades are NOT engaged, but then when I engage the blades the mower starts making a squealing sound and white smoke comes out(not sure form where), and then the mower will eventually stall out. (Find Out Now!). It may have drained a battery. Use a spanner for the safe and secure removal of blades. How To Install Recessed Lighting In A Room With Attic Access. Still not having much luck? Grass Collector door is not completely closed. Restart and now drive mower about 25 feet and engage blades on the fly and sputter and die. If the blades engage normally then the switch is bad. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Here’s what you need to check for when you notice a sputtering issue. It is then hard to start but starts and runs fine ... the lawn mower puffed out white smoke. (Find Out Now! Check These 3 Things. I have a 17HP craftsman riding lawn mower that started shooting. Lawn Tractor: Engine Dies When Blades Are Engaged . It works for a minute then stalls.....It starts up runs well, ... sometimes it chokes out and stalls or runs for a couple minutes then sputters and stalls and or backfires. Turning the blades on seems to cut the fuel to the engine and the mower turns off. Sometimes, motors just get a lot of buildup from all the grass, mud, dirt, and grime they push through. Follow this simple guide to diagnose the issue of excessive and violent vibration and try to fix it the way this guide teaches you. If your lawnmower makes you feel trembling, there can be several reasons behind it. Clean or replace the air filter to stop the mower from sputtering to a halt. I have a YardMachine riding lawnmower. For you to reach the carburetor, you’re likely to have to disconnect the air filter, fuel tank, governor control link, breather pipe, … However, there’s always a chance that it could be a more advanced problem. If you have reason to believe that the safety switch is the culprit, open your mower and check to see if the switch is properly plugged in. Too much air can also cause problems for the engine. Check the underside of the unit for caked on grass. Excessive grass under the deck will make the mower sputter. Although a little rumbling and shaking of the engine is to be expected on some lawn mowers, especially when moving over a bumpy lawn, excessive vibration from the engine can be dangerous. However, a tipped mower is, in most cases, the reason why your mower could be producing the fumes. Let’s have a deep look at each issue one by one to get the answer and to fix our main problem that why lawn mower shakes violently when blades engaged. If this does not fix the issue, check the spark plug. That area is the motor, which means that the reason for your mower’s malfunction lies somewhere in the motor. Most lawn care experts note that a lawnmower that sputters and shuts down the moment blades are engaged has a motor that’s dying. No luck fixing. Most of these causes can be easily fixed through DIY repair means—if you want to fix it. In a lot of ways, troubleshooting a mower is a lot like troubleshooting a car. If you haven’t refueled your lawn mower recently, add some fuel before your mowing session. Check your lawnmower’s pulleys, which should be located close to the belt. Use a torque spanner of accurate size to install new blades and to harden them well. If the tractor still bogs down after you have verified all of the blades are free the problems is most likely a carburetor problem. Tilt the lawnmower to prevent fuel leakage and to keep the carburetor up. Though it’s rarely the primary reason why motors die, it can be a contributing factor. Power take-off (PTO) switch in the mower is to engage and disengage the blades and deck of the mower during the mowing session. In many cases, it boils down to one of four main issues. Remove the spark plug using a wrench to prevent the mower from turning on while working underneath. I have a 12 year old 19.5 hp craftesmen riding lawn mower that runs at high and low ideal when no blades are engaged but now when i engage the blades the motor stops running. Here’s what to do: Motor safety switches are there to help prevent serious accidents from happening. A bad cap on the gas tank is the first place to look. Without getting panic or worry, you need to know that you can easily track, control, and fix them by simply reading the user manual. The major causes behind this vibrating issue can be the blades or a crankshaft. Doing timely maintenance really does pay off in the long run. Though there are measures to prevent grime from getting into key parts of your mower, it’s possible for grit to still show up from time to time. If you’ve been using your lawn mower regularly for the past couple of years, it’s safe to rule this potential cause out. My riding mower seems to run fine untill I engage the blade deck, then the engine starts to sputter and a whole lot of - Answered by a verified Technician. Husqvarna yth24k48 when blades are engaged, the engine begins to knock, spit, and sputter. Carefully read the amount of runout on the indicator by gently twisting the engine. By reading this troubleshooting guide, you will not only able to identify the causes, symptoms, and effects of why lawn mower shakes violently when blades engaged but also capable of fixing the shaking and vibrating issues of your lawnmower. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. If the lawnmower is again vibrating then it can cause by the damages crankshaft. So, if you’re not too attached to your mower, maybe it’s time to check out what new models would work for your home’s needs. Clean the blades thoroughly after removing them from the deck. When the switch is tripped, the motor immediately gets the signal to shut down. Eliminate the blades along with the blade mounting core and the spark plug from the lawnmower. Why Lawn Mower Shakes Violently When Blades Engaged, 1. This often signals to people that it may be time to get a new mower. Sometimes, during mowing sessions, mud, clay, or clump of grass can stick on the blades of the lawnmower. Someone mentioned that it may not be recharging the … If it looks worn out, replacing it can fix the issue. Leaving gas in the tank for months can result in the accumulation of moisture, especially if you use fuel with high ethanol content. Viewed 525 times 0. That’s why a sputtering mower can be a nightmare for people who get attached to their lawncare equipment. Though sputtering the moment blades engage is somewhat uncommon, it’s still not that unusual compared to other motor problems you could encounter. If a lawnmower sputters when blades are engaged, the most common issues include low gasoline levels, damaged belts, stuck pulleys, and broken safety switches. Refer to the owner’s manual and use the manufacturers instructions to clean the mower blade. Vibration or shaking is not a big deal when blades are moving with the speed of 200-240 mph and they are not sharped quite well, or it might be a possibility that after sharpening, they are not reinstalled properly. Hi we have a John Deere LA 105 and are having some problems. My honda mower chokes out when I engage the blade. If it still doesn't work then you may have a bad Seat Delay Module Control. So, if your lawn mower sputters, the culprit can usually be found within these three processes. For this purpose, you might need some devices to check and to keep them evenly balanced. If you let your guard down and allow dirt or bad fluids into the system, your engine will not only sputter but in time it may fail to even start or eventually die completely. This sticky fuel can clog up the carburetor and cause the engine to stall. Sometimes when blades strike with some hard material (stone, rock, or hard root) on the ground, it can also disbalance the blades or any other damage to them. ... Mower Blades Do Not Stop The next step is the removal of shaking causes. Tipped mower; Tipped Mower. Dirty air filters are one of the most common reasons lawn mowers sputter. Otherwise the mower will hesitate or shut off. Maintaining a lawn before 1930, when the first rotary mower came onto the scene, must have been a chore. You can concern to the user manual for the exact value according to your lawnmower. Remove the first possible cause of vibration, which is blades. First, we need to identify the exact causes and the reasons behind the vibration and the shaking of the lawnmower so that we can able to tackle the main cause and then head towards fixing. Otherwise, hire some professionals to tackle, handle, and fix the issue without making it severe. They’re tools we rely on! I was having problems with it last weekend when I was trying to get it out. The lawn mower, like all other machines, needs regular maintenance to … Ignoring the vibration will lead you and the lawnmower to the major mechanical or technical issues which sometimes are difficult to handle for an inexperienced person. Gas is fresh, oil fine, checked air filter, pulled red plastic cover/cowling off engine and got rid of all loose grass, fuel line seems fine and fuel filter had gas in it, spark plug wire seemed okay. Whether you are planning a remodel or are just changing your lighting, you should plan the design first. Why Does My Lawn Mower Sputter When Blades Are Engaged? Another way to fix lawn mower power issues is to clean the blade. Another major cause of excessive vibration and shaking during mowing is the bent crankshaft. Save my name, email, and website in this browser for the next time I comment. Over time, shaking may cause the crankshaft of the engine to bend. However, if you are new to a mower, it could be that you’re operating it in a way that triggers an automatic shutoff or that places undue stress on its motor. Though it’s common to worry about a favorite mower being “beyond repair” due to this issue, the truth is that most lawnmower problems are reparable—this one included. You want to be sure to clean or replace dirty air filters. I added a link to the Many people are able to quickly repair their lawn mowers by cleaning or replacing a spark plug. Generally speaking, seeing a motor that sputters out isn’t that uncommon. Moreover, the blades, crankshaft also got bent by tapping or striking of a lawnmower with some hard and solid material. Try to sharpen the blades on both sides to keep them evenly balanced by removing the extra metal from them. Active 3 years, 8 months ago. Engine Stops When Mower Is Engaged. After removing the blades, it is necessary to check the crankshaft runout by using a dial indicator. But first of all, you need to bring your lawnmower on a smooth condition by stopping it. com. You can simply fix the pollute blades by; After having long mowing sessions several times, blades need to sharpen properly and they need proper maintenance. In many cases, thorough cleaning of the mower can get rid of the stalling and sputtering problems you’re experiencing. And it may also help you to eliminate it, fix it, or repair it when your lawn mower shakes violently. If that doesn’t work, then you might have a more difficult problem on your hands. You can easily replace or remove the blades by using the user manual. Replace the damaged or unbalanced blades immediately. You may need to check the balance of the blades while sharpening them. It causes the blades to get imbalanced which produces noise, vibration and makes the lawnmower shakes and rattles. A relatively rare lawn tractor symptom is having the engine die when the blades are working. Lawn mower engine surging is a right pain in the Jacksie, it's an engine that runs erratically, revs up and down by itself uncontrollably. Dirt can be present in the apertures that lead from the carburetor and the fuel filter and interrupt the flow of fuel supply to the combustion chamber. The reasons outlined above are some of the most common reasons why your lawn mower could be blowing white smoke. However, if you’re comfortable with your repair skills, then here are the steps you should take: Disassemble the carburetor. Hire some professionals to service your engine and the lawnmower to avoid excess damage. Those filters aren’t just for keeping things environmentally friendly; it’s also a matter of ensuring that your mower can run. If a lawnmower sputters when blades are engaged, the most common issues include low gasoline levels, damaged belts, stuck pulleys, and broken safety switches. They’re tools we rely on! Does your lawn tractor work perfectly until you start the blades? Ethanol attracts moisture that exists as a suspension in the gas, so if you leave the mower sitting for months, the water settles to the bottom of the tank making your lawnmower sputter and die. If you do feel abnormal vibrations when the blade is engaged I suspect it could be related to one of the deck pulleys, a blade mandrel, blade belt not routed correctly or possibly a bent blade. After 1930, the work of a lawn owner was made easier with the help of this machine. And sometimes the abrupt stopping of blades can cause the crankshaft to bend and vibrate. Grab one of the blades and turn it. Cub Cadet RZT-42 has a PTO switch for the same purpose, and it has labels on it for engaging and disengaging; Pull the switch to engage the blades. Lawnmowers, for many homeowners, are like a best friend. By cutting a huge amount of grass, roots, and debris, blades become rough. Whether blades are engaged or not, there’s only one real portion of a lawn mower that can cause sputtering to happen. - do n't take it to the owner’s manual and use the manufacturers instructions to or! Work of a lawn before 1930, the work of a lawnmower with hard... To keep them evenly balanced may vary in some way but the reasons are pretty much same... Long can you Stay in a critical situation, our guide will help you better and. Behind it malfunction lies somewhere in the spring are going to be sure to clean the blades engaged... 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