make sure pilot screws are adjusted right. Whenever you overwork it, it will not serve you for long. to earn ZillaCash on your next purchase with us. But that doesn't mean they stay problem-free. it was cause by the pilot screws. It is one of the common symptoms of a bad or failing ignition coil. or create an account Since the stator is what creates the electricity needed for the engine to create a spark and run. Motorcycle Troubleshooting Guide. I am assuming you tried a different spark plug. Loose wire connector. A faulty regulator rectifier could not only affect things like motorcycle values but will impact the bike’s performance on the road. so when i checked them they where 6 screws out. The box itself is packed with electronics, and delicate components inside can fall victim to vibration and moisture over time. The CDI is not easy to diagnose because the observable symptoms of a faulty CDI box can lead to different directions. In my experience, it is rarely the CDI that is causing the problem they are pretty reliable. hey all i got a 99 ktm 200mxc two stroke that just had a stator failure, so i replaced it today when i got my new electrosport stator. Please, How to remove and install a motorcycle battery. Ignition coil faulty. When the fuel pump has a problem, spark plugs or coil packs are faulty, you would observe similar symptoms. On an electrical engineering level, it's different from CDI, but the troubleshooting process is the same. It is important to have your scooter checked by a professional so that they can tell which type is best for your make. It might not even hold low revs at all. The tests will help you to identify or eliminate the stator as the problem in a charging issue. These ignitions did just fine for decades, but those moving parts wear out over time. Only $9.99 for Guaranteed Holiday Delivery on All Eligible Orders Until 12/22 at 2:59 PM ET, click below for details. Six Common Motorcycle Problems And Solutions. I heard of some people fixing this problem by taking the CDI apart and replacing or soldering the fault. NOTE: This is not a comprehensive list, giving every possible. The CDI is like a computer as it controls the engine of your scooter. How to Check a Motorcycle Ignition Coil in 4 Steps When the new ignition coil is installed then the testing of the coil is really very necessary. You'll also hear about special offers and events! Heat can also damage or destroy a black box. Our goal is to provide the best possible shopping experience to every enthusiast who visits RevZilla. I even made an air trap for the oil cooler as i thought that the temperature was affecting the Ignition unit but that didn't sort the problem out. Therefore, the only way you can tell whether your CDI has a problem is by confirming that everything else is in the right condition. they have different setting for diferent years and carb types. If you're lucky, you're reading this for your own education. A magnetic pickup senses it as it goes by. Advertisement. I've tried both with good results. Website & Marketing by WordPress Website Pros. Could it be your black box? The CDI in your scooter is linked to the ignition. Symptoms of a bad ignition coil: A bad ignition coil will cause your motorcycle to have poor spark circulation. Redeem See what our customers are saying about us: Earn $5 for every qualified $100 you spend. The bike struggles to rev any higher than about 4,000 rpms. Might as well know a little about what’s happening under your seat. Therefore, if it is in good condition then you will have fewer or no issues with your ignition. Create a Battery-op Ignition System for Less Than $50: The cost of a new stator can be hundreds of dollars. Every scooter owner or lover should know that CDI models are either AC or DC. Also the spark plug cap is a cheap and easy replacement item that causes similar symptoms. Motorcycle CDI Ignition System Parts and Functions Amrie Muchta. Maybe your motorcycle has related symptoms but isn’t an ignition coil, could it be symptoms of Harley intake leaks or even fuel filter symptoms? One advantages of the CDI is that they are not sensitive to shunt resistance. Sure, there are aftermarket options for all kinds of applications. If you know your bike, pinning down the culprit is pretty quick and easy. The CDI uses voltage from the motorcycle battery to … There is a wide range of possible reasons your motorcycle’s regulator rectifier could fail. Jetav8r.com photo. These mentioned symptoms can be confusing and one has to be careful before concluding that the problem is with the CDI. The CDI box controls a motorcycle’s ignition system and allows it to start properly. customer service page for more details. The reason is that there is no particular way of testing the condition of the CDI. Also check out the Spark Plug Troubleshooting guide from our friends at NGK. Without a good stator, your engine will run poorly or not at all. “CDI box” is short for Capacitor Discharge Ignition box, although it is also called thyristor ignition box. Black box, brain box, pulse pack, igniter box, CDI module, power pack, whatever you want to call it: if your motorcycle is newer than 1980, it probably has a black rectangle spouting wires under the seat that makes the magic happen. (Some riders retrofit points-based systems onto their newer motorcycles to avoid the shortcomings of CDI systems. See our In some models of bikes, Yamaha for example, the cdi or tci is repairable. Be careful when buying replacements. An eBay special may have the same issue as yours, and a new replacement may not be returnable once installed. We owe countless miles to these creations. The major advantage of CDI is that the capacitor can be fully charged in a very short time (typically 1ms). Ground Wires. The trigger tells the box to fire, the box determines when to fire which coil with the capacitors, and zap goes the spark plug, ad infinitum. However, check engine light coming up can be caused or linked to other issues around the engine system. I'm sure some go bad but I would say it is a very low percentage. Symptoms could include misfiring, dead cylinders, backfiring, bizarre tach behavior, and countless other things related to how your engine's running. I have had the tci on my Virago repaired twice, replacement of a thermo fuse and transistors. Quality Parts for Scooters, Go Karts, ATV's, Dirt Bikes. Not so with modern sensors. Bad Stator Fix--Don't Buy a New Stator for Your Engine! Most are sealed up like a sarcophagus. It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights, irregular meter readings and poor starts. So you’ve got a spark problem on your CDI-equipped motorcycle. It might not even hold low revs at all. Different things require different power requirements from the battery. Faulty wire grounds are a very common problem, but can sometimes be difficult to track down. your ZillaCash Rewards on a future order with us! Mostly concerning CDI boxes and ignition coils... for more technical information feel free to message me, I'll send you some good info Here's a CDI box in a dirt bike. See that rectangular bump on the flywheel rotor of this Yamaha Vision? Eventually, your switch wears out. That's all great, but the jump to CDI was like going from carburetors to fuel injection. Yamaha RZ350's (especially 1983 and 1984 models) have a CDI problem that causes it to fail over time. Andy Greaser photo. While this Motorcycle Troubleshooting Guide is not a complete guide of every possible cause for each problem listed, it will help assist mechanics in troubleshooting some of the most common difficulties they will face. When working with CDI type ignition systems, it is very important to be aware of the high voltage discharge from the spark plug. That battery also has to run the starter, lights, radio, and other stuff in addition to the ignition. Orders $39.99 or more ship free within the contiguous U.S. Return any unused item within 90 days for a full refund. Borrow a cdi from another bike, plug it to your bike, If there is change is performance, then your cdi is bad. cause for each problem listed. It also directs the spark plugs on how to perform especially when they have to fire. Changing a motorcycle clutch is something that should be carried out whenever you notice the slightest sign of wear. Suvro Sen April 11, 2013. 11/06/2019. Finally, if you see the Magic Smoke come out, time for a new one. These systems are supposed to be maintenance-free, but even a loose trigger sensor can mess with your bike’s little brain. Thousands of miles of bouncing down the road can take its toll. Yamaha (RD350 YPVS or also called the RZ350) CDI problem FIX? Your scooter will serve you well if you take care of all its parts. This is a TCI box. Hey all, So i have a 1980 Suzuki GN400 and ive been working on getting it all ready for the street. The CDI system uses the discharged voltage from the capacitor to induce an ignition coil. Again, read up on safe options for your motorcycle before attempting. Get your ignition coil symptoms resolved as soon as they show up. For the purposes of this article, I'll refer to all the black box ignitions as CDI, since they all use the same basic components: box, coils, sensor. 1. Let's take a look inside. A popular variation of this system is TCI, which doesn't use capacitors in the same way. Two-Stroke Motorcycle Troubleshooting Guide. The CDI box, however, does not give enough ignition efficiency because its spark duration is short. Black box ignitions tend to fail all at once, unlike the gradual decrease in performance you’d expect from a points-ignition motorcycle. Or you can do it the other way. Testing for a spark on many classic bikes consists of laying the plug on top of the cylinder head (connected to the plug cap and HT … If you're not, you're wondering what a CDI does... because you suspect yours doesn't. ... CDI unit faulty. Since last time we spoke (+- 3 days ago) misfireing got worse and now when the bike is in 4000 rpm at any gear it just looses power. The best solution when troubleshooting black boxes is to replace a suspicious one with a known good part after checking the other possibilities first. Checking all of the grounds on your motorcycle can be done quickly if you know where they all are. Again, when a CDI box is about to go bad, it can lead to misfires, issues with starting, rough running or even stall the motor. Signs & Symptoms Of A Bad Stator. more common problems encountered. The CDI goes bad because of different reasons. So you’ve got a spark problem on your CDI-equipped motorcycle. The CDI has a brief charging period with a quick rise in voltage. This will let you know whether the installation was successful and if there is any additional problems or issues associated with it. Hello all, this is my 1 st article in BikeBD & I can’t help but admit that I am privileged to be given a chance to share my views & opinions here. 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. Again, when a CDI box is about to go bad, it can lead to misfires, issues with starting, rough running or even stall the motor. the guy i bought my bike off set my bike for a older syle xj with reguler threaded pilot screws. The problem may get worse as the bike warms up. Andy Greaser photo. Magneto damaged. The problem may get worse as the bike warms up. Sure, particularly if your motorcycle is older, but still new enough to have CDI. Sometimes, a bad CDI does not cause sparks at all. Bad stator symptoms triumph675 net forums motorcycle charging and electrical buell forum how to test your system problems yamah vision faq motorcycles diagnose re winding adventure rider triumph rat ktm 200 duke 12 generator Bad Stator Symptoms Triumph675 Net Forums Motorcycle Charging And Electrical Problems The Car Advertiser Buell Forum Stator How To Test Your… Read … Checking the voltage with a voltmeter versus relying on symptoms alone will prove highly beneficial. Symptoms could include misfiring, dead cylinders, backfiring, bizarre tach behavior, and countless other things related to how your engine's running. i bought my bike running rich way rich like 20-25 miles. Springs, weights, cam lobes, and other simple machines worked together to deliver spark at the right time, even as revs rose. 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