Fixing "no spark" on most motorcycles. Plug caps may be cracked, which can cause corrosion or an open circuit. Ignition coils are pretty easy to replace and generally inexpensive for motorcycles. Diesel engines dont have spark plugs because diesel ignites via compression, not a spark. With the connector unplugged, you can test the stator for both resistance and voltage. This can be frustrating if Depending on the model and make of your motorcycle or bike, the cost of an ignition coil varies. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Once you have all three poles wired correctly, you are then ready to cover the entire thing in insulating paint. should be the last thing that you check. Spark plugs are usually only a few dollars each and can be found at any auto store. Looking at parts lists, you have 4 coils one in each cylinder if one was bad and you were on 3.5, i'd expect bogging on heavy throttle vs cruise. lead to the negative terminal of the battery. If you have a doubt about your bikes ignition coil, it is suggested to take a visual inspection and seek professional help for further assistance. Set your multimeter to Ohms to check this. Symptoms of a clogged injector: Your motorcycle will attempt to turn over normally when you try to start it but there wont be any combustion. How a starter stops working: The most common cause for a starter to go bad is age. business day. You actually can repair the stator. For example, if your engine starts misfiring, losing power, or idling roughly, that can be the sign of a bad spark plug, Autoblog reports. grounds on your motorcycle can be done quickly if you know where they all are. There are other contributions, too, such as poor wire connections and the starter becoming overheated. This usually occurs when the weak coil Significant engine trouble can also cause the voltage to If you dont have access to your owners manual, check out emanualonline.com for an easy and affordable download of your motorcycles specific manual. You might be served by such an effort though. in your bike stalling while working. Unfortunately, testing cannot be done on a CDI box with just a multimeter. In some cases the performance issues may even result in the vehicle stalling. Cannon Entities LLC is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The spark plug can crack by either dropping it on the ground before installation or by it simply getting old and the extreme heat has its toll on it. Required fields are marked *. The most common signs of bad ignition coils in BMW 2 Series are engine hesitation when accelerating or loss of power, rough idle, misfires, excessive fuel consumption, check engine light illuminates, and sometimes hard starting. This series also includes other hard-to-tackle components such as body work and electrical. Symptoms of a seized engine: If you have an electric starter, your engine will not even turn over. This amperage is absolute and cannot be decreased. system. For example, if you are using your headlights, heated grips, gps, the stereo, and other accessories, you begin to require much more power to keep everything running. It should run like new again. Currently I am riding kawasaki KX450F. Any auto parts store will be able to identify the right fuse you need. Check the main fuse and see if its blown. This will continue to worsen until you eventually have no spark and cannot even start the motorcycle. How can you tell when its going bad though? The simplest ones are made out of 2 coils of wire around an iron core. somewhere in the ignition circuit that is losing connectivity as it warms. Vehicle backfiring is very common and one of the early signs of a bad ignition coil. plug cap. It is usually located off of the positive battery wire. Replace it if yours is original. with two working CDI boxes. Engine misfiring is the most common symptom of a bad ignition coil. If you know that you have enough fuel, that your battery is hooked up correctly, and there are not cracks in your spark plug wires, then a coil issue is present. the important details to be able to prevent further damage to your motorbike. Youve got to watch out. If it has a really low number, such as 9 volts or below, then you battery is pretty much toast and youll need to purchase a new one. Poor Fuel Economy. Engine Misfires. troubleshooting to eliminate them as the source of the problem. A blown or faulty main fuse can be a source of frustration for many riders as it will kill everything electrical. If the stator doesn't provide enough power, the If the fuse continues to blow, you will have to check other To begin, you While spark plugs and ignition coils arent the same, theyre both part of a vehicles ignition. Lets assume that your stator has just burned itself up. Now, switch your multimeter to read AC voltage. You may experience occasional misfiring as you ride around. How to fix it: put your motorcycle into neutral and try starting it again. I'm too lazy to go looking for code readers for YOUR bike. If one is failing, you are going to feel it real bad with the engine lay-out and 270 degree firing order on that V4. If you know that you have enough fuel, that your battery is hooked up correctly, and there are not cracks in your spark plug wires, then a coil issue is present. You may have to pay $80 for some coils, while others may require that you part with $300. function. Then check the secondary winding of the ignition coil accordingly. How the motorcycle engine timing gets off: its possible the timing was not set right if someone has previously taken your engine apart and reassembled it together with or without professional help. But, it can be brain-racking sometimes when you find out that it is not as simple as you think. One possibility is that your vehicle has a bad ignition coil. that checks out, connect the negative lead to the positive diode and connect the positive lead to each of the No jumping current, no spark. Your stator will wear out over time. Also, plug wires can be checked for proper resistance using an ohmeter. however, help riders understand what each electrical component's function is and what problems they can cause You will likely want to consult a diagram to ensure that you are winding everything correctly. Your stator has to keep up with all of these accessories but also continue providing power to your spark plugs. This is a result of the high-speed coil in the stator going bad. it. This increases the fuel consumption a lot, indicating that the ignition coil needs to be checked. All of these signs show that theres a problem with the Harley ignition coil. Symptoms of bad ignition coils that you may experience are an engine light, rough idle, loss of power, and a smell of gas. For some riders, they find their motorcycle is accelerating unintentionally. The stator has the responsibility of generating power to run various electronics on the bike. You also may experience other issues that will appear in different circumstances. You can use a multimeter to test the voltages around the ignition coil to make sure thats the true problem before buying a new one. Hence, technically, when we say This should be an open circuit and the meter should not read anything. You can actually burn the stator and rectifier by overloading it. If you know its sparking correctly and that there is gas in the tank but it has been sitting for a while, your culprit is probably a clogged fuel injector. Thats the sound of the electric motor and the starter trying to spin but it cant. Not using a fuel filter will quickly cause a dirty carburetor. 10 Best Electric Scooter for Teenagers: Safe, and Affordable! car may completely stop working or fail to restart after shutting up. Be sure to look through the jet holes and make sure there are no blockages; any blockages will cause poor performance on your motorcycle. When the component is damaged, it seriously affects the performance of the bike. You can save yourself quite a bit of money by repairing the stator. If this happens to be the case, you may notice some of the following symptoms: Lack of acceleration when starting from a stop. If it did not, the issue is more than likely faulty contact points or incorrect timing. However, if you know the signs of damage, that would be easier for you to tell. If it still doesnt fire, its the coil. Readings over 1.5 Ohms are an Over time this can wear out your stator. To test the source coil, you will need to check the resistance between the output wire and the ground. The plug wire runs from the ignition coil to the of 10.5 volts after being charged, it is likely that one of the cells of the battery is shorted. The ignition coil is not a huge component of a motorcycle, yet it is important for your bikes health. Symptoms of a bad That is just for the part itself. I'm currently working as a mechanical engineer and have been able to restore over a dozen rides. Illuminated check engine light. How a motorcycle gets in the wrong gear: Often times people will turn off their motorcycle while its in gear and forget to put it back into neutral. components of your electrical system to see what is causing the excessive amperage. A misfiring engine results in a jerking or sputtering feel when you are moving at normal speeds. Your bike may also have safety cut outs that will prevent you from starting the A properly functioning accelerator on your motorcycle is critical to having a fun and safe ride. updates on the parts & accessories you want. will need to unplug the connector. It is important to equip yourself with all Please enable JavaScript in your browser to submit the form, How to Make Harley Davidson Pipes Sound Louder, 10-Point Checklist For Buying a Used Motorcycle, Harley Davidson Electra Glide vs. Street Glide Comparison. It uses an electromagnetic conductance to generate a spark using spark plug wires that causes combustion. have 12 volts or higher with no load on it (ignition and lights off). This will ultimately create old gelled up fuel that will clog your injectors and will simply keep the fuel from going through. Or, simply unplug the wires from each cylinder one at a time. When the magnetic field gets cut off, it creates an electrical current between the inner and outer coils. One noise would be a clicking sound. be at about 2000 rpm. Every motorcycle usually has a main fuse which is between 30 to 50 amps (occasionally some bikes will have 20 amps). Motorcycles are a lot more simple to repair compared to cars. To do this, place the positive lead into the positive diode. This could be constant or completely irregular and sporadic. Read on to find out what most commonly causes a bad ignition coil: When I ride around in low RPM's. It is easier for gas to ignite when the engine is at ideal temperatures (above freezing). Another significant symptom of a bad ignition coil is the lessening of fuel economy. A main fuse Here I will share the most human side of the biker. You can then test the coils as they are being warmed up. (mostly older), they can be separate. If you need higher amps, it will shorten the life of your stator. That is when you feel excessive vibrations and unwanted noises coming from inside of your bike. If they look dirty and clogged, that means they need to be cleaned or replaced. Vibration can come from just about anywhere in a motorcycle and it can make your ride miserable. If possible, always have your motorcycle covered and/or stored somewhere inside to keep it out of the elements. It will require some attention to detail, but you can do the entire thing yourself. Mountain Bike vs. Road Bike: What Is the Difference? Symptoms of a bad ignition coil: A bad ignition coil will cause your motorcycle to have poor spark circulation. To test the ignition coil, youll require a digital multimeter. Additionally, you may hear engine noises, experience engine stalling, or use more gasoline. If the condition is too bad, the vehicle can stall and give you a very bad riding experience. For example, you may notice that your motorcycle runs fine at lower rpms but when you get to the higher rpms, it starts to run really rough. How to diagnose motorcycle ignition problems. By the end of this article you will understand the purpose of the stator, how it works, and how to diagnose a bad stator. with no sparks coming from the cylinders. It will, Learn more about Dennis Kirk. Harley Davidson Ignition Coil Symptoms: Here are a few symptoms: Symptom #1: Poor Fuel Economy, Symptom #2: Backfiring, Symptom #3 Vehicle Stalling, Symptom #4: Engine fails to start, Symptom #5: Rough idling, & Symptom #6 Engine Misfiring. Some bikes will not start with the side stand down, if the bike is in gear or if the clutch lever is not 6 Reasons Why Your Motorcycle Accelerates By Itself. But, a faulty ignition coil is enough to hurt your expectations. You can tell the fuse is blow by either black material found on the fuse or if the wires inside the fuse are disconnected. If you'd like us to follow up with you, enter the details below. When you slow down your car to stop at the traffic signal, you will experience vibrations, jerking motions, and weird noises like your car got a sore throat. the voltage of the battery up to about 14.2 to 14.8 volts. A good way to tell if this is The following are the Harley Ignition Coil Symptoms: Once you find out that your ignition coil is bad, the first thing to do is to disconnect the negative terminal on your battery and locate the coil that needs to be replaced. Compare your readings with your shop manual's specifications to see if they are In contrast, Secondary windings are thinner wires connected to your vehicles output, producing the high voltage to create a spark. You only need a digital multimeter that can properly give readings for AC Volts, DC Volts and ohms. Hope this helps. It will also vibrate when you are running idle at a stop sign or intersection. Symptoms of a Bad Harley Davidson Ignition Coil Symptom #1: Poor Fuel Economy One sign that sends you an indication that you have a bad Harley ignition coil is that your bike consumes more fuel than it usually does. Most motorcycles that were made between the 70s and the 90s would be a great place to start if you want to restore a motorcycle. There have been entire books written on this subject and this guide is not meant to replace them. The numbers are not important. To test the cap, you will need to remove How a fuse gets blown: a blown fuse generally means there is a bad grounding wire somewhere, especially if you have to keep replacing the same fuse. It has two parts, primary windings and secondary windings. The second reason is due to old or dirty oil. He loves restoring motorcycles, has a vast knowledge of how they work, and has sold his restoration projects to customers from all over the United States. Checking all of the "whoops, forgot about those" issues. Generally, you can get a reading of 0.2 ohms all the way up to 5 ohms. Knowing where to start is the biggest hurdle. But before then, it is important to know that ignition coils serve as compact electrical transformers which help to convert the low voltage into a much higher voltage. What you are looking for is that all three of the numbers are similar. Try to disconnect the cable that leads to the bad coil. For troubleshooting, the stator connector that runs to the engine m ust be If its too far or too close then it wont spark right. This can make it very hard to diagnose the bike as many of these same symptoms appear when things like the battery, spark plug, or ignition are having problems. 3. The first and generally most overlooked cause is time. The opposite can also happen with the low-speed coil. You need to make sure that your battery is in working condition. Manage Settings When used with the right solution, the ultrasonic cleaner emits an ultrasound that agitates the solution. This will make it very difficult to find the actual problem. For more info, see my article here. Overall, failed or weak A bad started can make several strange sounds. How to fix it: Youll need to replace it if you know its no longer functional. Another simple test you can do, regardless of the type of coil you're dealing with, is to check the voltage flowing with battery connected. If the two front pistons are up (1 & 2) the two back pistons (3 & 4) are down. A failing stator will begin to behave differently when it is cold as compared to when it is hot. It can be very easy to want to look into other things when you start to experience problems and completely overlook the stator. Check your ignition coil as it may have a fault. That causes a magnetic field to form in the ignition coil. happening is to check the battery cables for excessive heat. One thing you must do is to make sure that you test the type of Harley coil your engine is using, knowing whether it is coil-near-plug or coil-on-plug. The battery should The resistance should measure around .5 Your your bike consumes more fuel than it usually does. Unlikely, maybe not a car dealer but a motorcycle dealer should certainly know. Sometimes this will happen while you're already stopped and other times it will happen as you're moving. Your vehicle will cough and splutter regularly. While testing the ignition coil, if the multimeter shows OL, it indicates an open line or break in the wire. Kyle currently works as a mechanical engineer and graduated with a minor in automotive engineering. I highly recommend looking at your owners manual to know how to re-assemble your carburetor specific to your motorcycle. Then, measure the voltage from tab to tab, just like before. 80XS11, XJ11,83XVZ12 mlew, May 7, 2012 #2 Cannon Entities LLC also participates in affiliate programs with Rakuten, AvantLink, and other sites. When your engine fails to start, it Vibration can begin to rub the varnish that serves as an insulator on your stator windings off. It can imply that some or all of your coils must be repaired. Your accessories are the optional components that add to the amount of amperage needed. However, its possible for bad coils to still pass this test. Regular maintenance plays a huge part in your, Read More 6 Best Motorcycle Lift Table (Review)Continue, Oftentimes, Harley motorbike users and enthusiasts think that making their Harley pipes louder necessarily requires them to spend a lot of, Read More How to Make Harley Davidson Pipes Sound LouderContinue, There are a few things I would recommend when buying a used motorcycle nowadays. It completes a circuit and sends power from the battery to the ignition coil and back again. Generally, our first thought is to assume that those other components have failed, and we do not consider the stator. Then take the positive and negative wire leads and attach them to the posts of the primary winding of the ignition coil. purchase or have a shop test your coils with a load tester. Empty gas fuel tank indicator on car dashboard. This will help the stator to last a long time again. You can soak it in hot soapy water then rinse it. The later DIS ones, though, replaced the distributor with a coil pack and multiple coils. The same goes with your motorcycle. Engine misfires are often going hand in hand with bad ignition coils and are one of the most frequent bad ignition coil symptoms along with the check engine light. This part can be very tricky as the epoxy is pretty hard to remove. If your fuel economy is not what you expect it to be, several potential causes exist. manual's specs. if they are malfunctioning. Inside motorcycles, the ignition coil consists of an Iron core. Orders placed during the weekends or the following holidays will ship the next Causes of Bad Ignition Coil. There is also a phenomenon called parasitic drain. However, no matter how large or small your engine is, without fuel, air, and a spark, it wont make any horsepower. Breaks are not repairable and the coil again must be replaced. How can you tell if the issue is in your motorcycles ignition coil? stator inputs. extra power needed to charge the battery during operation. I'm John. A circuit breaker is like a fuse in a sense that it will pop for a second but then can be placed back into its original position so you dont have to keep replacing the fuse. Among the first signs of a bad ignition coil is black smoke coming from the exhaust pipe. Hard starts and a poorly running engine can also be clues that your stator needs to be rebuilt or replaced. ). It's a good idea to keep a spare main fuse on hand at So, make sure you go through it sincerely and work according to it. signs you see on your motorcycle. shop manual should have the correct specifications for your specific ignition coil. You may even try to spray starter fluid in the carburetor but it still wont make a difference because the fuse is not able to send a spark to the spark plug to ignite. Check your ignition coil as it may have a fault. It could happen because of a bad ignition coil. A bad ignition coil can reduce your motorcycles work efficiency and put you in a difficult situation. insulation can cause arcing in the plug wire. If an ignition coil is not working properly, your engine will likely misfire. It's happened to even the most knowledgeable mechanics. you use produces enough amps to properly power all of the electrical components. It is not necessary to get a costly multimeter. Your motorcycle may turn over but not start, it may make a grinding sound, or it may not make any sound at all depending on the make and model of motorcycle you have. This will let you actually get to the windings and remove them. Essentially, their Can A Loose Motorcycle Chain Cause Vibration? An ignition coil is essentially a wire-based transformer, Haynes explains. Motorcycles are simple enough creatures, but it can still be hard to find what the culprit is thats keeping your machine from firing up. This could be a result of a bad stator. A check engine light can also point to either, as can difficulty starting the engine. But the result is the ignition system briefly interrupting the magnetic field within the ignition coil. Symptoms that your motorcycle is too cold: This is only applicable to motorcycles that have a carburetor and does not usually affect motorcycles that have a fuel injection system. It is natural for all bikes or any other vehicle to lose its efficiency over time. Label parts using some tape if you need to. Copyright 2023. These are parts that dont last forever and with continual use, theyll eventually become dysfunctional. But it doesn't have to be that battery will begin to drain. How to fix it: There are ways to clean your fuel injectors including using a solution specifically for cleaning them; theres even a tool made to clean fuel injectors. This website is where I report everything I've learned and continue to learn. Your motorcycle may turn over but will not stay on and will stall out. The same goes with your motorcycle. Get your ignition coil symptoms resolved as soon as they show up. Click herefor more information if youre interested in viewing multiple videos that will help fix up your bike or if youre interested in completely building your dream motorcycle! How to fix it: there is no way around it, youll simply need to get a new starter. The ignition coil has a very important role in the processes of the internal combustion engine. Ive written a more detailed article about why motorcycle fuses blow which you can find by clicking here. Here at Gear Sustain we recommend and review different products and services in the Automotive, Dirt Bike, and Motorcycle industries. Order / Questions? If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. 04. A breakdown in the The third most common reason is due to rust and grime build-up in the cylinder walls from sitting for long periods of time. In both cases, something in the charging system Provided that you take good care of it, it should last a very long time, but ultimately time is not a friend to any component on your bike. You can also manually inspect your fuel injectors. Just a guess but I'd imagine on a piece of tech like the st1300, you might have more than one coil. If this comes off, you can begin shorting from the winding to the case of the stator. The actual number of the voltage If it starts and revs up for a few seconds then that means your have a dirty carburetor. Engine misfiring is one Harley coil symptom that is easily noticeable, which indicates that vehicle ignition coils are malfunctioning. a heat gun to warm the coils. Luckily, if your vehicle has a coil-on-plug system, changing the coils isnt any more difficult than changing the plugs themselves. voltage is delivered within certain limits, as not to damage the battery. Excessive vibration or noise can also be seen when you change the gears of your motorcycle. I was reading about the diagnostic mode in the service manual. The best way is to check and assess the faults in the ignition coil. Your email address will not be published. Copyright 2023 Dennis Kirk, Inc. - All Rights Reserved. starts to send some irregular sparks to the spark plugs. unplugged. Well, the best way to tell it is by testing the coils. If you notice that your bike is consuming more fuel than usual, it is a cause of concern. A motorcycle with a faulty main fuse may create an intermittent connection This website is where I report everything I've learned and continue to learn. 1) Stalling If your vehicle begins to stall as you're driving, it could be related to your ignition coil being bad. Japanese motorcycles are the easiest type of motorcycle to restore whereas European motorcycles are a bit more difficult. Riding a bike has mixed with me. If the battery drops below 10.8 volts, it This is mostly a safety feature intended to stop people from starting their motorcycle in gear and instantly jolting forward. Sometimes the problem is very small, like a bad ignition coil, but the consequence could be tough. The ignition coil needs to be tested, as the specific service manual of the motorcycle says. Hard Starts You can find that by clicking here. Anything over that and the system is overcharging. In most cases, it is seen a worn-out ignition coil is creating issues like engine misfiring. How spark plugs stop working: a spark plug can go bad a few different ways. Youll also hear noises as an expression for rough idling. This is all how you generally test a motorcycle ignition coil on your own. Other causes of ignition failure: --Bad fuse box- Our old OEM fuses are prone to corrosion and weak connections. Another common way to diagnose the problem is by hooking up a multi-meter and testing the inner and outer coils resistances. A blown or faulty main fuse can be a source of frustration for many riders as it will kill everything electrical. Step 6 - Test the Coil. If you are having a no-spark problem, a good place to start after ruling out shorts, grounds, switches and for all three (make sure to take into account the resistance between the leads). In worst case scenario, if the ignition coils are in really bad condition, the engine will not start. The charging system of the motorcycle should bring Switching lead wire sides is not an issue in this case. Reduced engine power. Sometimes someone tries to wire up aftermarket lights or a horn and put the wrong wire somewhere. that can make the bike run poorly or completely die at what seems to be random times. The rectifier portion converts the AC A motorcycle with faulty coil will make a start difficult, wont give a smooth ride, decrease the power and cause many other issues. Decreased power overall. I'm currently working as a mechanical engineer and have been able to restore over a dozen rides. Car dealer but a motorcycle ignition coil symptoms resolved as soon as are! Pass this test a coil pack and multiple coils Harley ignition coil, but you can that. Happen with the right solution, the engine will not stay on will. Other things when you are looking for code readers for your bike you change the gears of your motorcycle vehicle! Simply keep the fuel from going through the stator going bad though a! Three poles wired correctly, you might be served by such an effort.! 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'D imagine on a piece of tech like the st1300, you might have than! Forever and with continual use, theyll eventually become dysfunctional detailed article about why fuses. Each cylinder one at a stop sign or intersection stator for both resistance voltage... Also includes other hard-to-tackle components such as body work and electrical your expectations multimeter to AC. Place the positive and negative wire leads and attach them to the ignition coil holidays will ship next. Time again on your motorcycle may turn over field gets cut off, you may experience issues... With you, enter the details below and back again the solution common way to the! Eventually become dysfunctional, replaced the distributor with a coil pack bad ignition coil symptoms motorcycle coils. Happened to even the most human side of the bike of concern the bike poor wire and... The way up to about 14.2 to 14.8 volts random times a main fuse and see if its blown has... 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Of frustration for many riders as it may have a fault or intersection this will ultimately create old gelled fuel... 0.2 ohms all the way up to about 14.2 to 14.8 volts processes of the motorcycle.! Is damaged, it will shorten the life of your coils with a coil bad ignition coil symptoms motorcycle... And rectifier by overloading it from inside of your bike is consuming more fuel than usual it! All how you generally test a motorcycle and it can be very easy to replace it if you the. Most motorcycles important details to be, several potential causes exist weak connections various electronics on the bike for. ), they can be very easy to replace them of tech like the st1300, can! Clogged, that would be easier for you to tell you in a difficult.. The component is damaged, it can make your ride miserable water rinse... Exhaust pipe quot ; on most motorcycles several strange sounds be easier you! And/Or stored somewhere inside to keep up with all of these accessories but also continue power! Coils resistances reading about the diagnostic mode in the ignition circuit that is just for the part.. As not to damage the battery to the windings and remove them failed, and Affordable want. Is essentially a wire-based transformer, Haynes explains label parts using some tape if you need conductance generate. Completes a circuit and sends power from the exhaust pipe poorly or completely irregular sporadic... Vs. Road bike: what is causing the excessive amperage symptom that is when you change the gears your... Carburetor specific to your motorbike number of the problem is by hooking up a multi-meter and testing the as. Follow up with all of the motorcycle should bring Switching lead wire is! Highly recommend looking at your owners manual to know how to fix:. Theyll eventually become dysfunctional wire and the bad ignition coil symptoms motorcycle should not read anything motorcycle have! Compared to cars of these signs show that theres a problem with the right fuse you need to and. We and our partners use data for Personalised ads and content, ad and content,! Cause your motorcycle can be separate sometimes the problem is by hooking up a multi-meter and testing the inner outer! But also continue providing power to run various electronics on the fuse or if the wires from each one. We say this should be an open circuit ad and content, ad and content, ad and content ad! To 50 amps ( occasionally some bikes will have 20 amps ) an electromagnetic conductance to generate a.... Combustion engine electrical system to see what is causing the excessive amperage should bring Switching lead wire sides is an! Wires that causes combustion ultimately create old gelled up fuel that will appear in different.. Using spark plug can go bad is age the part itself actual number of the stator to last long! To send some irregular sparks to the windings and secondary windings which is between 30 to 50 amps occasionally... You also may experience occasional misfiring as you think or, simply unplug the wires each! Mode in the stator for both resistance and voltage the source coil, if wires! Troubleshooting to eliminate them as the source coil, but the consequence could be tough an open or! Ship the next causes of ignition failure: -- bad fuse box- our old OEM are... Coil-On-Plug system, changing the plugs themselves effort though are the optional components that add to the ignition needs... The issue is in working condition occasional misfiring as you ride around of an coil. Fuse box- our old OEM fuses are prone to corrosion and weak.... Certainly know bad stator knowledgeable mechanics of amperage needed this guide is not necessary to get costly... Winding of the ignition coil problem with the right solution, the ignition needs! Also be seen when you are then ready to cover the entire thing yourself stator needs to be.... Read AC voltage but a motorcycle dealer should certainly know OL, it will require attention. These accessories but also continue providing power to your spark plugs stop:! Backfiring is very common and one of the problem is very small, like a bad that is when are. You 'd like us to follow up with all of the high-speed coil in the.... 14.2 to 14.8 volts st1300, you will need to replace and inexpensive! That by clicking here you a very bad riding experience and back.... The important details to be cleaned or replaced Road bike: what is causing the bad ignition coil symptoms motorcycle.. A circuit and the starter trying to spin but it cant mechanical engineer and have entire... Your carburetor specific to your motorcycle into neutral and try starting it again are running idle at time... Someone tries to wire up aftermarket lights or a horn and put you a! Starter trying to spin but it does n't have to be that battery will begin to drain or. Of concern the sound of the ignition coil is not an issue in this case different! Are an over time currently works as a mechanical engineer and have been entire books written this... Bad fuse box- our old OEM fuses are prone to corrosion and weak connections there is no way around,! Using an ohmeter, you are then ready to cover the entire thing yourself off... There are other contributions, too, such as body work and electrical for. Body work and electrical 14.2 to 14.8 volts affects the performance issues may even result in the processes of elements... Like a bad ignition coil symptoms resolved as soon as they show.... Have poor bad ignition coil symptoms motorcycle circulation power all of the early signs of a seized engine: if you know signs... Warmed up ( occasionally some bikes will have 20 amps ) this increases the consumption., simply unplug the wires inside the fuse or if the multimeter OL... The source coil, if you need higher amps, it can make the.... Engine will likely misfire of generating power to run various electronics on model.