If your Kubota tractor is starting OK, but then shutting off, you most likely have an issue with fuel starvation. There could be something wrong with the fuel injectors which might be causing this problem. Read More, Kubota Fuel Filter Change - EASY JOB - Cheap, Secondary or Safety Air Filters on Kubota Engines. Finally, another potential reason why your Kubota tractor wont start could be due to a problem with the fuel system. Does anyone know if the John Deere relay kit solution works for this situation? Loosen bolt, turn key on (no need to crank), wait for the fuel to stop bubbling, then tighten-you're done at that point. If there is something wrong with the battery, the first thing you need to do is check it for leaks. For the engine to keep running, there should be air flow in the carburetor. Unlike corporate website companies who write articles from an office overlooking a major city, the authors on this website live in small towns and regularly use many of the tips and recommendations provided in their own garden and lawn care. You might hear a click as you turn the key, but that's it. If you decide to replace the battery yourself, there are a few things that you need to know. After that, see if it is clogged by carbon buildup. In scenarios where a tractor is starting fine, but then stalling and shutting off, the most obvious place to begin troubleshooting is the fuel system. 1. I checked the glow plugs with a voltmeter and they are all fine. There should be a wire that you can disconnect and reconnect First of all, you will need to check the fuel filter. The most common causes are problems in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter). Established in 2009, we are the largest online community of Kubota tractor and equipment owners. In many cases, it doesnt make sense to repair them because getting a new engine (or replacing the tractor entirely) will be the economical choice. The engine needs to be provided with enough air for the combustion process to work. SOLUTION: Remove any corrosion found on the wires. If your Kubota tractor won't start, it could be due to the following: Dead Battery Corroded Battery Terminals Loose Battery Connection Faulty Safety Switches Bad Starter Motor Failing Starter Solenoid Bad Starter Relay Air in Fuel Lines Failing Fuel Pump Bad Fuel Quality Overheating Engine Clogged Fuel Filter or Fuel Lines If you want to clean it at home, consider buying a fuel injector cleaner. I think it will cycle for 10 seconds each time as long as you turn the key off between tries. Theres no voiceover but the visuals and text do a pretty good job of helping you to understand circuit issues: The clicking sound that you hear is made by the solenoid. Locate the air filter on your mower and remove the plastic cover. Remove the glow plugs and hand-turn the engine to get rid of the water. Sometimes, there are simple ways to troubleshoot and fix problems yourself. A failing fuel pump can also be a reason your Kubota tractor won't start. The more tractors sold, the more room there is for error. Prices pulled from the Amazon Product Advertising API on: Product prices and availability are accurate as of the date/time indicated and are subject to change. To check the fuel injector of your Kubota 3-cylinder diesel engine, you will first need to take it out of your engine. If it is dirty, you will need to replace it. You can find this cleaner at most auto parts stores. Download one today. He knows exactly what the challenges are to nurturing a thriving yard in difficult soil.Paul takes a practical approach to yard improvement and enjoys putting best practices and golden rules of lawn care to the test. This unit acts as a failsafe in case of temperature spikes or abnormal electrical issues while running your tractor, and will stop fuel from flowing to the engine in the event of an emergency. Okay so I loosened the nut and turned the key and, Ok so I bled the lines and there is smoke when it turns over but it still won't start. Today, we will share some common reasons and solutions for this problem. First it seemed like I had a dead, or dieing battery as it was very difficult to get it to turn over. Thriving Yard is an affiliate for companies including Amazon Associates and earns a commission on qualifying purchases. Check its disc, return spring, and all other components and make sure they are in good condition. Batteries do their best work and last for a longer time when you maintain their state of charge. This portion of the fuel system acts as a screen, protecting the internal portions of the engine from dirt, sludge, and other loose particles that can damage the engine if they get inside. It won't get anywhere close to starting. If the fuel pump has a block in it, this is going to prevent fuel from being converted to power. One of these is usually under the seat: the problem could be as simple as the switch being knocked out of place while you were in the seat, using your tractor. Checking an engine starter is not an easy process. Having said that, there is nothing to worry about if the engine valves of your Kubota 3-cylinder diesel engine go bad. Then theres the issue of the cables which sometimes seem prone to come loose in the track. In addition, owners have issues with hoses leaking. A few different problems can cause a tractor to click without starting. To be used as energy in an oil-powered machine, fuel needs to flow through the engine via a process known as combustion. He knows exactly what the challenges are to nurturing a thriving yard in difficult soil.Paul takes a practical approach to yard improvement and enjoys putting best practices and golden rules of lawn care to the test. You may want to check your battery and alternator. This can be caused by a variety of different things, such as a bad connection or a faulty fuel pump. Welcome. They are in a continuous state of motion, and like all mechanical components, they are also susceptible to wear and tear. Sep 21, 2010 / Turns over but will not start #4 brain55 Veteran Member Joined Jan 19, 2008 Messages 1,796 Location Brentwood, CA They can get dirty or corroded over time, often leading to the starting problem in the Kubota 3-cylinder diesel engine. If your Kubota tractor is starting OK, but then shutting off, you most likely have an issue with fuel starvation. 7E8 and 7E9 Engine Codes: Meaning, Causes, Symptoms and Fixes, Broken Ball Joint in Your Car (Symptoms, Causes and Replacement), Haze on Windshield When It Rains (Causes and Fixes). Maybe you hear nothing at all when you turn the key . Over but won't start. eManualOnline provides descriptive, affordable and convenient service and repair manuals for cars, trucks, tractors, motorcycles, and more. If the battery on your Kubota tractor is dead, you will need to replace it. Has anyone else had this problem? When you remove the fuel solenoid, turn the key and see if the engine starts. If this never happens, the problem is probably not within the secondary side of the circuit. If the air filter becomes clogged, airflow to the engine will become limited which can also result in fuel starvation. I loosened the top injectors where they go into the engine head and cranked the engine and barely anything comes out but a few drips. Note: This is a focused review on this issue for Kubota tractors. OrangeTractorTalks brings together Kubota enthusiasts from around the world, into one place, purpose built just for them. Welcome. I'd look at air next as you can check it in just a few minutes. The failure to bump off on glow plug but to do a good job starting after first start has a pretty short list to look at. the middle screw on the second glow plug is missing. Here are the facts: 1. The signs of a bad or damaged plug include low fuel consumption and a hard start. You can do this by yourself, or you can take it to a mechanic and have them do it for you. To test circuits, fuses and switches use a multimeter tester you can get one here: http://amzn.to/2A5ihXN , you check continuity of circuitssimple example: if you have a standard fuse you put the test wires on either end if fuse is blown it wont show on your meter, if its good needle will go up showing that current can flow through it(Continuity) if your multi-meter doesn't have a dedicated continuity test mode, you can still perform a continuity test. If youre having this problem, dont worry! There are many different models of Kubota tractors, so you can find one that is right for your needs. Turn-Key - Now attempt to start the mower in the normal way. 2. If it is dirty, you will need to replace it. Know these 7 common causes, How To Propagate Red Chokeberries: The Complete Guide, How To Prune a Red Chokeberry Bush: 5 Easy Steps. Undo the corroded connection with the appropriate wrench or screwdriver. All you need to do is jump the two terminals within the circuit, and then see if you can get the engine to turn over. Apr 24, 2021 / Kubota ZD21F Diesel - Turns over but won't start #3 K KWentling Veteran Member Joined Jun 22, 2002 Messages 1,116 Location Rozet, Wyoming Tractor Kubota BX22, Kubota ZD21, Kubota M7060 The relay fix is for low voltage at the starter solenoid. LOL. If the answer is yes, you should purchase a replacement. So, make sure that it is not damaged. First of all, you should check the fuel filter. This can be caused by a variety of different things, such as a dirty fuel filter or a clogged fuel line. If you want to clean it at home, consider buying a fuel injector cleaner. It is this process that allows an engine to metabolize the fuel and use it to power the machine. So, why does the Kubota 3-cylinders diesel engine not start sometimes, and what to do if yours is not starting? Have kubota b3030 tractor. Checked power (13.4 volts coming to the starter) Tried hot wiring the starter (give the S-terminal 12v. Here is what I would try since you indicated that the battery seemed low on charge. Then, the primary wire will have less ability to connect the battery to the starters cranking mechanism fully. The wire on it was a little frayed and I patched it w/electric tape. This can be caused by a variety of different things, such as a bad connection or a faulty starter solenoid. No smoke=no fuel obviously. "Tractor Won't Start" Troubleshooting Tips You must log in or register to reply here. Does it sound like glow plugs need to be replaced? If your engine has started emitting noises or consuming more fuel, check its fuel injector and valves. I hope this article was helpful. To troubleshoot efficiently, you should start with the smallest piece first, and work your way up to the more complex components of your tractors fuel system. Bad cables can contribute to a bad battery and starting issues. You can do this using a voltmeter. SO NOW, whatcha need to do is. In some cases, this will start your tractor but not completely solve the problem. Drain and refill the fuel tank with fresh diesel, install new fuel filters and bleed the lines. But make no mistake, this is a big job. Six weeks without starting? If your not gonna take it apart.. how are u going to fix anything?? Problem Engine Won't Turn Over. One of those is a common issue of the tractor shutting off suddenly while in use. I replaced the switch watch that video here: https://www.youtube.com/watch?v=TT0QN_xReOM The switch I got was for a 2013 L3800 Kubota TD-060-53902 yours may have a different number I did see some online but I would check your local Kubota dealer first. Starter Issues If the engine doesn't turn over, locate the starter, which is near the radiator on the left or right side, depending on the model of your Kubota engine. There are definitely ways to fix it. New kubota 2650 won't start.key turns but nothing happens. If the fuel pump is not working properly, it can prevent the engine from getting the fuel it needs to run. This is actually a tractor engine. Overall, there are a few problems that owners seem to deal with the most. How Do You Use a Wheel Stud Installer Tool? These are just some of the potential reasons why your Kubota tractor wont start. Same exact behavior. However, it is advised to repair or replace worn-out engine valves ASAP as they can cause damage to other components of your engine. This can be a frustrating experience, especially if you need to get the tractor going quickly. If it is not moving freely, apply some penetrating oil to the mechanism. If your engine is emitting rattling noise, its engine valves need your attention. Check the air filter and make sure that it's not clogged and is clean. Everything is back together. Of course, if it is having some problem, the Kubota 3-cylinder diesel engine will not start. Sometimes, if a battery is fully discharged and just allowed to sit for a long time, it wont return to life. B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab, The glow plug light won't on but once in awhile. A defective starter and wiring can also cause this problem. First of all, you should check the connections on the safety switch. When this is happening, you should be able to find the safety switch underneath the tractor. The starter solenoid is responsible for sending voltage to the starter motor. If a return line has a crack or a break in it, excess air can escape from the line, diminishing the pressure inside the engine that is required to convert the diesel fuel to power for the tractor. Your fuel pump is one of the most important parts of your fuel system because its what pulls the fuel from the tank into the engine. When the solenoid clicks, it hands the positive cable over to the cranking mechanism of the starter. The Kubota tractor brand is generally respected for being a good tractor brand. If you are unsure about yours, the Kubota website has walk-through videos based on your tractors model. I just searched L3800 injection pump to SEE what kinda set-up you have.. If this is the issue, there is a simple way to diagnose it. Okay so I got the head gasket replaced and the valve lash set using the EOIC method for every cylinder. If there is a problem with your fuel system, you will need to take it to a mechanic and have them take a look at it. These are simply some of the most common Kubota tractor problems that owners report.