If you washed the bike while it was running, it might have sucked water into the carbs. Take photos as you remove parts to keep track of where things go. As an alternative method, you can use a piece of cable to jump your solenoid. You will also need to remove the cable coming from the solenoid. It is not a job everyone will be comfortable doing for themselves, but it is nothing an averagely skilled home-mechanic can’t manage after watching a couple of youtube videos for their specific brand and model. 1 Answer I have a 203 Yamaha big bear 400 4x4. Rack? Consider adding a cleaner product such as “Seafoam” to your first tank of gas after the cleanse. Pour some fresh gas in the tank to flush out any remaining gummed up old fuel or debris before installing the valve. Both you and the ATV can catch fire from a spark caused by a short. I recommend using a product like Seafoam or similar to see if it will dissolve the gummed-up fuel before embarking on a more thorough cleanse. Empty spinning. Start by making sure the battery is healthy and fully charged. 2000 Yamaha Kodiak 400 4x4 Will turn over but will not start. yamaha warrior problems Hello I baught a 2001 warrior last month and it had problems with the spark..I changed my ignition coil and regulator and it went fine until I did an oil change last week.. If the engine turns over slowly, check and clean the battery connections. it ran great for a few months when i first got it. Plz help!? This will, however, require a specialist tool that the average home mechanic does not have. Your next best option is to pump or siphon the fuel out of the tank. Not all ATVs have one, but if yours has a primer pump, you should use it to pump fuel back into the carb manually. Does it make clicking or buzzing sounds? Page 59 If it does not come on, ask a Yamaha dealer to inspect the electric circuit. Truckbed? Reinstall the plugs and try starting the bike. If i take out the plug it will turn over fine. I figured it was the battery, but I installed a new one with a full charge and experience the same problems. Compression. It lets off a loud buzzing noise from the starter relay. Please refer to your service manual. i put 2 different plugs in it . All you get is one or several loud bangs coming from the exhaust. gine stop switch to “ ”. What often happens is that the timing advance key, also known as a rocket key, has sheared and needs replacing. How Much Can ATVs Tow – A Closer Look at Towing…, How to Test an ATV or UTV Battery. If not maybe your flywheel key is sheared throwing off the timing. I recommend that you begin troubleshooting as if the turns over but won’t start. Some ATVs have a vacuum-operated shut-off valve that is designed to open only when the engine is running. Use carb cleaner and a toothbrush to clean as much as you can. I'm keeping it open for solutions on that problem, but here's another one. Set the meter to 200. If you forget to engage the kill switch before trying to start the bike, it will pull gas into the carburetor, but there is no spark to ignite the fuel. Spark plugs are considered consumables that may need replacing from time to time. Follow the manufacturer’s instructions, depending on which cleaner product you choose to use. Note that the coil may be bad even if you’re getting a spark. Leaks will prevent the pump from working correctly. Here are a few things to try out if your ATV is not getting a spark: When you try to start the ATV, the engine seems to crank just as normal. The valve should now open and allow fuel to flow. Apr 12, 2017 | ATVs It depresses and releases quickly. We have owned it over 10 years. Open the switch and clean it with electronics cleaner. The starter engine shaft should start spinning freely with no signs of drag or scraping. Well if your intake vavle is bent it wont go closed and that would explain the 1/4 in clearance problem. If you don’t get a reading, you need to trace the wiring back to your battery to wind where the connection is broken. Jeff Policky. If the vent is blocked, the fuel pump may not be able to suck fuel out of the tank. Not making any sounds, 168 miles and - Answered by a verified Motorcycle Mechanic. there is a control or function you do not 3. Let us know what you find. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. Troubleshooting a fuel-injected ATV is a bit trickier than carbureted ATVs, but it’s possible: Most fuel injected ATVs do not have a serviceable fuel filter. 1999-2004 Yamaha Big Bear 250 ATV engine won’t start refers to when the motor’s crankshaft either turns but fails to start the engine or the crankshaft doesn’t turn at all. To test the starter, you need to remove it from the ATV. Make sure you are only touching the rubber, and not any metal parts. ! A couple of ounces should be enough before installing the spark plugs and starting the bike. If the key is sheared, remove all pieces from the old timing key and install a new according to factory spec. Try hitting the starter with a rubber mallet or with a piece of wood and a hammer. This may cause some oil to get trapped in the pulse-line, obstructing airflow. Identify the vacuum line that goes to one of the inlet ports. I'm an ATV and offroad-enthusiast, an engineer, a farmer, and an avid home-mechanic. ok ill do that today i really appreciate the help thanks agian ill let you know whats up tonight. When your Yamaha ATV wont start, a few simple tools and tests can help you identify your no start problem. Lookup a timing diagram for your specific ATV and make sure all the timing marks line up. If you’ve been working on or removing some of the timing components, you need to make sure that everything is reassembled correctly. There should be no reading when not pressing the starter button. Locate the pump by tracing the line coming from the gas tank. Got this problem, after the Grizzly sits up for over a few days I try and start it and I get a clicking noise when I push the starter button. Dirt and debris getting inside the … Make sure neither is clogged and allows air to flow freely. It has a brand new battery fully charged and completely clean terminals and connections with dielectric grease. 2005 660 Grizzly, Bluesman Blue, Warn XT25, 26" ITP Mudlites,ITP Wheels,Moose Rear Box,Power Mad hand guards,greaseless primary sheave,clutch kit. In my spare time, I enjoy the thrill of trail riding with my friends. I let it sit since last year is the problem Im sure. Before you start troubleshooting, make sure there is gas in the tank by actually looking into it. After checking the starter motor through the solenoid test, the next part you want to test is the starter circuit interrupt relay. I have a 1994 Yamaha Kodiak 400 4x4 and it turns over but wont start unless you hook a rope to it and pull it then it starts right up every time and runs fine. Remove the spark plugs and pour a dash of gas into the spark plug holes. I … If the fuel is gummy or contaminated with water, have the fuel tank drained by a mechanic or Yamaha dealer. How Long Do They Last? Motorcycle Technician. The same applies to gas contaminated with water, which is heavier than gasoline and will fall to the bottom of the tank. Looking for a little help with diagnosing a noise on my 2001 Kodiak 400 … It turns over very easily but wont run. I pulled the plug out and grounded it and it has no - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. 2 PCS Ball Joint Upper/Lower Fits For YAMAHA ATV YFM 350 400 450 660,Big Bear,Grizzly,Bruin,Kodiak,Wolverine,Yamaha UTV Rhino YXR450 YXR660 YXR700 (pls check list) 4.3 out of 5 stars 59 $33.99 $ 33 . Remove the rocker cover and make sure the valve clearance is according to spec. Expedition Unknown Rediscovered Beyond The Secret, In my limited troublshooting practice I looked at FUEL, FIRE and AIR. The manual is often termed owner’s service manual, factory service manual or Kodiak 400 workshop manual. Make sure you are following the proper procedure for jump-starting an ATV. The electric starter works and turns over the engine perfectly fine but it will not start because it loses spark. Recently I tried to start it. have some one do a compression test as a valve may be stuck open check for spark at the plug Sep 21, 2015 | Yamaha 2007 Grizzly 450 Auto 4x4. Anthony says: May 16, 2017 at 6:38 pm i have a similar problem. Switching to “Reserve” and letting the bike run completely dry may allow dirt and gummed up fuel that has set on the bottom of your gas tank to be sucked into the carburetor. My 2000 kodiak 400 will not turn over with the electric start. In addition, you have possible fuel pressure regulator issues or bad o-ring seals. Diagnosing a cranking engine that refuses to start may involve troubleshooting more than one system on your Ford Explorer. If the voltage drops too low, the battery won’t have enough charge to start the bike. 0 If you want to save some money, consider looking up a suitable replacement filter on-line. Are ATV Plows and Plow Mounts Universal or Model-Specific? 2. 1X New Complete Recoil Pull Start. The black lead goes to ground. Fuel needs to be replaced with air as it gets pumped out and used. any ideas would be great. But the solenoid may be bad even if it clicks due to internal corrosion. Good, Reduced, or Bad? The timing key plays a crucial role in timing your bikes ignition as it locks the flywheel in the right position on the crankshaft. My 1995 Yamaha Virago will not crank the motor, it is a 1995. brian winther. There is nothing like the freedom of taking off across the dunes on a Yamaha Kodiak 400 4x4. I am having a problem with my Honda ATV TRX 300S. The buzzing sound you hear is coming from the starter solenoid relay that won’t kick in due to low voltage. motorcycle certificate. Took it out about an hour later and it died again then I … Replace it with the right size fuse and try starting again. I have an 09 yamaha grizzly 550 efi that wont start. Share Followers 0. please help ! Why Do ATV and Motocross Helmets Have Visors (Peak)? Remove the spark plug from the cylinder-head and connect it to the spark-plug wire or ignition coil. If you are not able to jump start your ATV, it may not be a dead battery that is causing your starting issues. Try giving it some gas when turning over the engine. 65 satisfied customers. Remove the spark-plug wire (on a carbureted ATV) or the ignition coil (on a fuel-injected ATV) from the spark-plug. Look for a button on the side of the carb that may look like a choke knob. yodacrawler89, March 19, 2008 in Sport ATV. New battery, FRESH GAS THAT FLOWS TO THE CARB, changed the oil, new spark plug but haven't actually checked for spark. Use an air compressor with a nozzle to clean all the small passages inside the carb. When that dead/dying battery was in place, the lights would power on dimly while the key was on, and I would hear a clicking sound while trying to start it, but it would not turn over. Note that some EFI ATVs also have an inline external fuel filter. All of the fuel left in the tank will drain as you remove the valve. Runs good (after jumping the starter solenoid relay terminals with the helpfully included with the sale pliers) but no fan when my wife's 03 Kodiak 400 had fan and the starter button makes it to the starter solenoid but the ECU side isn't happy. Is this a problem with the switch, the solenoid, or the starter itself ? Dirt and debris getting inside the tank is another common culprit for a clogged up fuel supply. First, you should use the positive lead to connect the positive battery terminal with the positive (red) starter cable. Replace the starter if it is bad. Make sure the cable you use can handle the high current. what is that and how can we fix it? If the bike doesn’t start after running the starter for about 10 – 15 seconds or pulling the starter rope 15-20 times, you should stop and continue troubleshooting. Hello, i want to see of anyone could give me some advice. Be careful so that you don’t damage any of the fragile plastic components as you remove the pump assembly. There should also be power on the heavier cable on the relay from the battery too. One is fuel exiting the pump and to the carburetor, One is the pulse-line (air), usually marked with a “P”. Was ridding it and all of a sudden it just died. I made this site to write about the things I have learned as an ATV owner. It starts up, idles fine until I apply throttle then it revs a bit and dies.ANY HELP PLZ Make sure the battery is installed correctly. Check for unplugged or damaged wires in the wire harness. Try removing the pump and check for internal resistance with an ohm-meter. Pull the starter and see if you can turn the flywheel, if not the engine is locked, pull the plugs and check for liquid lock, if the engine does turn the starter may be defective have it tested. All you can hear is a clicking sound each time you press the starter button. This will tell you if the valve is working or not. A gasoline engine needs three essential components to start and run: First, check if the bike is getting fuel: If the plug is dry, the bike is not getting fuel and you need to continue the troubleshooting as described below. The task if troubleshooting fuel injector problems, however, is a task that often gives even seasoned mechanics a headache. Charge the battery or replace it if it’s dead. Just take the spark plug out of the engine and plug it back into the spark plug wire. If the pump is still not working, you may need to replace it. Use a bucket to collect the fuel. Recharge the battery to 12 volts. The gauge should follow the pulses. Running the bike dry won’t harm the spark plug per se, but contaminated fuel may. Kodiak wont start. Set the meter to 200.000. Fixing such issues is usually a job for a mechanic. This seems to be a lively forum with manual downloads being supported so hi. Not really a professioanal way to do it but it we all have to work with what we have. Connect an inline spark-tester between the spark plug and the spark-plug wire/ignition coil. Look for a cylindrical canister unstalled in-line anywhere on the fuel line. Consider asking a mechanic if disassembling the carb seems intimidating. Fuel exits the fuel tank through a shut-off valve at the lowest part of the tank. If one cam is off by just one tooth, you may run into starting issues accompanied with the occasional backfire. 2wd vs. 4wd. If it doesn’t, the engine might need an overhaul. After ruling out a bad battery, it’s recommended to have further troubleshooting done by a mechanic. Clean the carburetor, as described in step three. ATV Winch Mounting: Upside Down? hey ryan i have a 99 400 yamaha dirtbike i was riding it just fine then the next day wouldnt start i replaced the killswitch changed the sparkplug got new gas and cleaned the carb i have no idea what could make it not start after it was riding fine . Do not try to start it. I tried starting about 2 weeks ago, and it fired right up, but died about 15 seconds later, not to start again. If you suspect that the valve is not working, put it in “prime” as this will override the vacuum operated valve. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. How to Fix a Ford Explorer That Will Not Start by Dan Ferrell . I can pull start it and it will start fine for the rest of the day. It got harder to start, until it finally would not. If you have the time, let the bike sit for a couple of hours before trying to start it again. You will also need to address the cause for your dirty carburetor, or it will clog up the next time you ride. Water trapped inside the spark-plug booth may cause a short that will prevent the ATV from starting. Update: I just traded for it it started a couple of times. Then set the valves to the required clearance. but you have to keep hitting the starter until it finally goes. The engine will turn over, but will never be able to ignite the fuel and get running. Not making any sounds ... Big Bear 400 turns over but wont crank. The battery is good. You may need to do this 2-3 times before you succeed. Trace the fuel line all the way from the fuel tank to the carburetor. Solenoid and starter issues will be covered later in the post. You’d be surprised how often the solution to an ATV that won’t start is forgetting to turn on the kill switch. If the coil is damaged, replace it with a new one. Remove the starter circuit interrupt relay from the machine to test the continuity of the output by connecting it to your volt/ohm meter and the battery. Locate the drain plug on your carb and drain it. All Yamaha Rhinos take unleaded gasoline only. If your vavles are tight rotate the flywheel again until all your marks line up and the valves are loose. 2000 Yamaha Kodiak 400, was running fine and in an instant it went to half throttle, starts fine idles fine. Good, Reduced, or…, How to Replace the Valve Stem on a Tubeless Tire, How to Replace or Install an ATV Battery; Step-by-Step, How to Remove ATV or Motorcycle Grips Without Cutting. it is a short silver cylinder, with four spark plug like things coming off of it and many wires. But when you activate the starter, you should get a voltage reading of 12V or more. Something as easily remedied as inadequate fuel levels can prevent the Sportsman 90 from starting correctly. Another possible cause of these symptoms is that your valve clearance is incorrect. Then, refer to the other topics in this post according to how your ATV is behaving. We have a yamaha Kodiak atv. A dirty carburetor may prevent enough fuel from getting to the cylinder, causing a lean backfire. ATVs with traditional carburetors usually have a vacuum-operated fuel pump. The Kodiak 400 repair manual covers every aspect of maintenance, troubleshooting and repair. Oil Temp light is on when I try to crank it … read more. I opened it up and had a look inside. If the engine turns over quickly, the battery is good. Aftermarket fuel pumps are available for most ATVs, but replacing them is not for everyone. You should get a voltage reading of 12V or more. It just turns over. Fuel flows all the way undisrupted from the tank to the carb. Let your dealer lap the valve in then you can take it home and put it together. Jump to Latest Follow 1 - 7 of 7 Posts ... Is the fuel pump turning on? Test if the kill switch works by using a multimeter, a test light, or a simple continuity tester. Disconnect the fuel line from the valve to see if gas comes through. Some issues are easy to fix at home, while others require assistance from a mechanic. Before replacing the fuel pump assembly, it’s worth making sure the bike is charging correctly as a low voltage will negatively impact fuel pump performance. I have tried everything in the world! 2003 Suzuki GZ250 Under 400 original miles OK folks, in my previous thread I mentioned the bike not starting when warm. This article details the main reasons why a Yamaha Big Bear 250 will not start and what should be check to resolve the problem. Checking and adjusting the valve clearance on an ATV is not that hard to learn, but it is recommended that you ask for guidance from someone more experienced the first time you do this job. Over 2 ohms, the coil is likely bad and needs to be replaced. For Yamaha Kodiak 400 4x4 2000-2006. I had to disconnect the battery. A clogged air filter will restrict airflow and therefore have a significant impact on how rich your ATV engine operates. when i line the marks up the intake and exaust are loose both and last night i ajusted the intake it was real loose so i dont know if i messed up the valve ajustments i cant tell whats going on now. Wipe the plug clean and put it back in. Rode it for 15 minutes and it quit again. First of all, it is not really recommended that you use starter fluid on your ATV in the first place. Turn off your machine and then start it back up again, and hit the starter switch to hear your solenoid close. Due to the backfire, you know that at least some fuel is getting through. If your solenoid is good, the problem is likely with the starter. Discussion Starter • #1 • Feb 25, 2018. Then try running the starter for several seconds or pulling the starter rope until the bike starts. My 2002 Yamaha Kodiak ATV seeps final gear oil..hose..gas tank..riding. Make sure the run switch is in the “ON” position. If the task of aligning the timing marks sounds intimidating, you are probably better off leaving the job to a mechanic. Just a small amount of water may foul the plug instantly. 99 A worn fuel pump may not be able to create a high enough fuel pressure for the injection system to mist the fuel properly, which in turn may prevent the ATV from starting. You do not want to be missing any parts when reassembling the carb. The filter will be at the very bottom of the assembly. With the fuel valve open, disconnect the fuel line from the fuel inlet of the carburetor. Ask your dealer to make sure you get the right one. Starter fluid evaporates very easily, and the vapor is highly flammable. Yamaha is a world leader in recreational bikes and ATVs. If the battery is below 12,6V, it needs a charge to provide the necessary cranking power to start a sub-zero ATV. If your battery is charged, but you still get nothing when turning the key, you may have a blown main fuse. so do you think i should pull the head off tomarrow and check them is there a easyway to check them with out having to really get technical like using a mic ive never used one but i have them . Most times, it’s either an issue with the fuel-pump or that the fuel supply line is clogged up somewhere between the gas tank and the carburetor. Copyright© ThumperTalk, Inc. - All rights reserved.ThumperTalk® is a registered trademark. it doesnt even backfire/sputter or anything. There you will find a large plastic locking-ring that connects the entire fuel filter assembly to the fuel tank. Open the airbox to drain any water and let the filter dry out. Replace the battery if it is damaged. If there are any signs of weather cracking, replace the line. In .003-.004 Ex .006-.008 inch, ok well i lined up the marks on the flywheel and the marks on the cam and i pulled the plug and stuck a straw down it the whole and turned it over by hand and the piston is all the way down and on its way up it gets stuck on the intake valve coming down what would cause this and the intake rocker had like 1/4 inch of play in it, ok i have good news i puled the fly wheel off today and the key was sheared off so i put a new one in it and put it back together and put it in time now it backfires still but i cant tell if its 180 out on the cam. Choose the topic that describes your ATVs behavior the best. The fuel pump will need some time to suck up fuel after the bike has run completely dry. Modern EFI ATVs may provide an error code indicating fuel injector issues. Leave the choke wide open to allow maximum flow. I'm also the owner and editor of BoostATV.com. This article details the main reasons why a Yamaha Big Bear 250 will not start and what should be check to resolve the problem. Essentially, the starter DOES spin, which in turn spins the bigger gears, but the reaction is the same. Before they break completely, they may be getting weaker gradually due to wear. Why wont our Yamaha Kodiac atv start? The lights and battery work. ... 2000 kodiak 400 trying to turn over with battery charger on battery and key off. If the relay is getting voltage see if it there is voltage at at the starter when attempting to start. Clean the carb as described earlier in this post. The bike hasnt been running to my knowledge for 4-5 months. Also, if your ATV has a tether pull cord style kill switch, make sure it is connected properly. Use a multimeter or a voltmeter to check the voltage. This guide will help you troubleshoot the most common causes for an ATV that won’t start. Yamaha 400 with electrical Gremlins aplenty. Repairing a stuck valve is usually a task for a trained mechanic. If you do it incorrectly, you risk causing permanent damage to your engine. You can get one for cheap at most auto supply stores. You will find a method for testing the stator in. When I goto start it I can hear a rapid clicking noise coming from a relay. Disconnect and apply dielectric grease to every electric connector as a preventive measure for future trouble-free washing! Most gas tanks will have a removable drain plug or on/off switch at the bottom. Cracks in the fuel line may cause the pump to suck false air into the tube instead of gas. I can not start my Yamaha (year 2000 ) Kodiak 400, It is turning over, changed spark plug, drained gas and put in fresh premium grade, checked gas flow from gas cock, checked flow through gas filter, … read more. I have spent two days trying to get this thing started, and have realized that i have gotten no where. Then attach the negative lead to the negative battery terminal. You may need to replace your spark plug to get going again. You will generally need to replace the whole assembly to replace the filter. ATV Mud Tire Weight Comparison (With Charts), Average ATV Trailer Weight (With 10 Examples), How Much Do ATV Tires Cost – Comparing Different Types, The ATV won’t start – the engine is not turning over, Troubleshooting a carbureted ATV that is not getting fuel, Troubleshooting an EFI (electronic fuel injection) ATV that is not getting fuel, The ATV won’t start after running out of gas, https://seafoamsales.com/uploads/2018/12/HOW2_Gummed-Up-Carburetor.pdf, how to repair an ATV that’s been submerged in water, proper procedure for jump-starting an ATV, How to Charge Any ATV or UTV Battery – All You Must Know. The red lead goes to the starter side of the solenoid. Replace the spark plug; it may be damaged even if it looks ok. Test the internal resistance of the ignition coil. 2002 kodiak wont start just backfires. The easiest way to identify the cause is through a process of elimination. Hi, I’m Haavard, and I’m the guy behind Boost ATV. Your bike’s timing is what tells the bike when to pull air and fuel into the cylinder, when to ignite the fuel and when to discard exhaust gasses out the exhaust. Too little air will cause an overly rich mixture, which may result in symptoms as the ones you experience. It does not make the buzzing/clicking sound associated with a bad solenoid. Inside this valve, there is a mesh screen that is supposed to stop dirt and debris from entering the fuel lines. Plz help!? Most ATVs have a main fuse. You may need a set of large pliers to remove the ring as they tend to bind. Yamaha,Suzuki,Polaris Technical Tra. Turn the fuel cock to “ON”. and nothing just the same backfire . Inspect the vacuum line for any damage or cracking and replace it if necessary. Flush the tank with some fresh gas. 5 Posts . Yamaha is a world leader in recreational bikes and ATVs.