Checked no fire to spark plug but has fire on wires going to coil. Since I have had it, it runs like crap Bogs down with just a little trottle and backfires like crazy, thinking it was a fuel issue I went a head and replaced the carb, so it is still doing it so now my thinking is misfiring, is there a way to check/ adjust the timing? There should be between 20vAC ~ 100vAC coming from the CDI power wire (Black/Red), although much lower voltages will still be able to produce spark. Enter your name and email to get notified when new content becomes available. Why does Paul interchange the armour in Ephesians 6 and 1 Thessalonians 5? Any output from cdi, and no spark. CDI test. Your result should be very low around 0.5 to 1.5 Ohms. Coils are generally a sealed, water-tight component. Then start the engine and watch the tester window. I had a similar problem on my Baja Dune 150. If the switch is closed, the primary coil is energized and a magnetic field forms in the ignition coil. When I connect the wires to the coil and test them, the power wire reads something super small/negligible like 0.1vAC 4. hello mr Depot lol 125cc atv. Ive tried 3 new cdis and no spark. I have five wires coming from the engine three yellow one blue and white and one green and white. I dont see that in your troubleshooting. Buggy cranked up. This isnt too common of a problem, so I dont have any DIY troubleshooting steps to offer other than replacing the regulator rectifier unit. Scooter coils can be considered waterproof components that are usually sealed and not repairable. The transformer typically has only a dozen or so turns on the primary but many thousands on the secondary. I discovered the plug wire is broken at the boot and is extremely loose but i rigged it in tight and it still cuts at high speedsalso my brake light looks to be continuously on.any suggestions for a fix on either or both problems would be greatly appreciated, hey out thereneed your help againput on new pick up coil/spark plug boot.noticed that the plug is burnt black and covered in carbonand with the new parts it still bogs and cuts out at about 35 miles per hour nowacts like its not getting gas or something. 22.5 v Although, my stator wire bundle is 100% within a block I have no bullet style plugs. any help would be awesome. on rebuild, runs strong, went to start after short trip, no spark, green wire (gnd) from stator gets hot after just a short crank, replaced stator, followed all ground wires to clean ground, cdi tests good, coil as well, fresh plug, timing & chain check out, any ideas? I get correct ac voltage at cdi power, trigger wire, and cdi output. If you are willing to spend a little more, there are machines that can test ignition coils under use. What resistance are you seeing between the the red wire and the others (yellow, then white, then black)? Copy. does that mean its bad? To test the operation of both the ignition coil and the spark plug, connect the tester between the spark plug boot and the spark plug. Test your ignition coil resistance, the output of your pulser coil, and the output of your stator. Second link gives detailed instructions for testing and diagnosing coil pack. Im stuck. power wire from stator has 30vAC and trigger wire has .1vAC. Buggy continues to run once fuse is blown, but lights etc no longer work. Tim, your voltages going into the CDI are healthy. Why no spark??? Try checking the inlet boot for any cracks or dry rot. Never have had or worked on one. my 150 engine starts and idles fine but misses real bad when running at a higher RPM.i have had the carbrator replaced and it is tme same. Before getting started, take a look at this diagram. The tool is installed inline with the ignition coil to determine if the coil is producing a spark. If necessary, remove any plastic covers that may be covering the ignition coils. As soon as I plug the coil in its all lost. Everything is disconnected except for the ignition system wires. I have a Twister Hammerhead UM125 II R. Its been running fine the last few weeks. But in the original spark test, you'd have to test all the plugs. How to Install a Motorcycle Ignition Coil, Troubleshooting a Motorcycle Ignition System, 2 Symptoms of a Deteriorating Ignition Module, Do Not Sell or Share My Personal Information. If it does its shorted to ground somewhere. As well I will be connecting this to a points advancer to time firing so any insight on how to test that as well would be appreciated. Tested with OLD CDI and received the same readings. View our Privacy Policy here. I have a yerf dog spiderbox no fire to spark plug. Ordered new solenoid and tune up kit. Plug in the stator, CDI, ignition coil, solenoid, and starter switch and you should be able to start the engine. Using the wiring Diagram I have made my own plugs and disconnected all other wires. Thank you for the ignition troubleshooting guide. Tried it with the new CDI and the old CDI. It wont crank at switch But will jump start and kick start. Having problems with brakes so am waiting to replace brake caliber when it becomes available. all voltages check in range. Stator has 60v at supply wire, .04v at trigger wire, cdi output is 35v and coil reistance is .05 ohms. One really odd thing I see that seems like a problem is that the performance cdi I bought has a light on it and when the key is in the off position it lights up and when it is in the on or cranking position the light goes off. Any suggestions? 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. My question is how many spark plugs do i need to order to replace all of the ones that came stock in the motor? We can test this function by interrupting the circuit that runs to the CDI from the coil and bridging this with a Lamp which is rated at 12volt/3Watt located in a lamp holder. Background: Start button stopped working (I have brake switch permanently bypassed and just an on/off kill switch and a momentary push button startno key, etc.). The steps to test the high voltage coil of your scooter. Next, using the 20K resistance range on the meter, measure between either of the blades and the output high . It goes to your #1 pin on the CDI. Correct the leads and replace the fuse and you should be good to go. Now I am getting #6 16v, #5 16v, # 2 0.2v #1 0.0v Please help I dont know what to do now!!! Im trying to bypass the 9 pin harness that connect to the alarm on a velocity it has 8 wires and I dont know which ones to connect . Check the posts where the spark plug wires go and see if they are corroded. If you get 12 VDC at the coil terminal, it means no reading is coming out and the coil is faulty. Everything is working according to your flow chart, (thank you btw), Read the comment above yours about how the trigger wire/circuit works. Power supply from kill switch Click here for instructions on how to enable JavaScript in your browser. Around 100VAC at coil. I do however did not get any readings from the cdi box to the coil. Arthur, all of the Kinroad models Ive worked with use AC CDIs. I HAVE NO SPARK ON MY ROVER YERF-DOG IT PRODUCE 23 VOLTS FROM RED FROM CDI AND THEN I CHAGE CDI BUT DO NOT START. Open/nothing Take this measurement for me twice, once without the sparkplug connected, and then a second time with the spark plug connected and in the plug hole. Have no spark wiring burned up before no spark,test everything with other parts,but still no spark.What could be wrong with it? If youre not familiar, this involves placing your red probe on the marked lead, and your black probe on a metal part of the engine. Forget the kill switch, just cut power to the CDI. If not hen I would replace the spark plug wires. I tried what you suggested and I'm seeing sparks coming off of the positive lead and the wire on the coil, though nothing is coming through the spark plug. This is a good site where people get help and help others. Based on that information I thought the stator and pick up sensor were OK I re-connected the CDI box and measured the voltage to the coil and received 0 volts. If I replace the CDI it runs for about 7-10 minutes. 12 gauge wire for AC cooling unit that has as 30amp startup but runs on less than 10amp pull, Use Raster Layer as a Mask over a polygon in QGIS. Ignition coil overheating: what to blame? I then checked the CDI to ignition coil positive and get nothing at all. I am working on a SunL GY6 150 cc dune buggy. If your talking about pins on the CDI you may be using the wrong type CDI. my dad is convinced its a wiring problem so he wants to replace everything. Any help would be greatly appreciated. 2. I have attached a picture. This system is made up of the cylinder and the piston. Spark Plug Fire Is ORANGE Trigger voltage is 0.10VAC. What is the right Stator? Fresh gas. The kill for the engine is by grounding #1 at ignition switch. Was all working fine when I got it then the starter clutch destroyed itself. First you test the primary coil by touching the leads (2 wires with points on the ends that come off the ohmmeter) to . Edit 2: Back in the day we used to use simple timing lights - just a strobe light that was triggered by the spark and ran off the battery - this enabled one to see when the spark was occurring. Stator output. I have a tumberlin crossfire 150. In nearly every case of a bad ignition part, spark is just gone or intermittent (but still in time). This entire problem began 15 minutes after my son washed his ATV. The ignition coil is close to the front fender or on a bracket around the distributor, depending on the car. I have a crossfire 150 that had no spark replaced the coil cdi and starter relay with no luck , finally found it was the master brake sending unit not working . Still no spark. Stator Test. Or a BS short somewhere ? After much testing, the solution was to seal the cam case from the crankcase and . Although the frame usually isnt a good ground, killing spark through that way shouldnt have damaged the ignition system. Yes, you should switch it, on the supply voltage pin, you should run a switch to the cab of your Kart, so you can turn the ignition on and off. H.R. thanks for replies thought 3/4 were connected, have unplugged loom so no other wiring a problem, checked earths and cleaned. CHECK WIRES ON THE COIL AND MAKE SURE THERE NOT LOOSE AT ALL. Trigger is putting out 0.1 VAC I have what I believe is a Hammerhead 150 with F/R and twin chain. 2. I have replaced the CDI on this unit 3 times. Also the coil has been replaced as well as the spark plug. If the stator came with the pulser coil. Your two problem areas seem to be pins 1 and 6. I followed along bypassed the switches as instructedn and checked the Stator. Hola Terry. If you look at the pinout above, it is pin 6. I have a Hammerhead Gts 150. This quad arrived at my shop blowing fuses as soon as battery hooked up. Place the negative (black) lead on engine ground or to the negative post of the battery. Should I clean the carb? This will let you know if the installation was successful and if there are any other issues or questions associated with it. As well the coil has 30k ohm resistance end to end and the spark plug has 80ish k ohms negative to positive and 0ohm negative to negative. How do you know if your scooter's battery is dead? Although there are many differences in wiring between models, most GY6 ignition systems work the same as shown in this illustration. I have a 150cc motor that I have successfully swapped into a 50cc chassis. All you will need is a multimeter. Step 3: Disconnect the wiring harness for the ignition coils. 56. If you need a more complete wiring diagram, our diagram for the Dazon 150 Classic would more closely match your Kinroad: How can I obtain a book for parts? The best answers are voted up and rise to the top, Not the answer you're looking for? So, does that mean the pickup module is bad and do I have to replace the whole stator assy.? SOMEONE CAN HELP ME? Minimum values: You only need a digital multimeter that can properly give readings . In order to test a moped coil you need to use an ohmmeter. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. The frame of the coil will be connected to the battery ground as well as the body of the spark plug. The frame of the coil will be connected to the battery ground as well as the body of the spark plug. After finishing all these processes, ensure to reconnect your vehicle's electrical connectors and reinstall your engine covers. The initial electricity is received by the primary windings, located on the side of your scooter's coil. No spark I replace the coil cdi and stator with no difference. Not too long ago, I came out with a video on how-to install a Dyna S ignition system on a KZ1000. I have replaced the CDI with the better one and motor ran ok for about 4 starts. if thats the case its working perfectly . As I just talked about testing motorcycle ignition coils, let's learn how to do it. when you turn the key, or as soon as the rectifier is connected, etc). Refer to the article above. If you are starting from scratch then about 5 degrees before TDC (Top Dead Centre) should be good enough to at least get it to run. My guess is its the CDI. Turn off the motorcycle ignition. Make sure that it is gapped to the manual's specs. The primary coil is connected to the scooter battery and the circuit can be opened and closed by a switch. Turn the ignition ON and check to make sure you have 12 volts. Already swapped the cdi unit and the coil. It wouldnt start automatically like it should. When this happens, it prevents spark. Set your multimeter to ohms. yes it would matter but I dont think its possible because the key way would not be correct and would not allow you to put the stator on. Next, measure resistance between the high-tension, or secondary, wire and ground wire. Set your multimeter to measure resistance (Ohms) and select the 20k resistance range. One is brand new and other came on Buggy. It is not the end all test, but it will show if you have an open circuit. Remove the plug cap for the test. I have replaced the cdi, coil, plug, stator and still no spark. or faulty relay. The meter should read 6,000 to 15,000 ohms. Craftsman Leaf Blower wont start, ignition coil failure? The good news is that you only need one gadget to help you figure this out. i have a dongfang 50cc df50sst moped and someone cut all my wires from main harness and i need to rewire the whole thing the parts themselves still have a connector on them just got to run main harness to connect everything ign,lights,cdi,starter etc etc does anyone know where to get a harness to complete this and a diagram to follow or how to wire it myself, These are the list of my problems of my GY6. but the battery would not charge before. Required fields are marked *. Ignition Winding: is it fried or only more sensitive to lower voltages? Ignition system testing, Magneto coils, Points and CDI. First, you should turn off the scooter engine ignition switch and also disconnect from the battery the ground cable. https://www.buggydepot.com/product/404/cdi-connection-kit-pigtail.html, https://www.buggydepot.com/tech-center/dazon-raider-classic-wiring-diagram/, https://www.buggydepot.com/tech-center/150cc-gy6-carburetor-cleaning-guide/. Or is there something else going on here? Fuse blows. so it sat broke and my kids were bummed because they had to ride the other POS. Any information would be grateful. Make sure your motorcycle battery is fully charged. As for taking the carb off well that looks scary. The reason this is the case is because the trigger wire sends a burst of voltage once per RPM that is only 10ms in duration (10 one-thousandths of a second). Can you help me? This will always be hot and you can only turn off engine using the kill rocker switch. Design Engineer/Project Manager for injection molded plastic company Hey Dan, it turns but no start. Help!? It sparked a couple times but not continuous. it starts and runs for about 10 minutes then dies and i lose all spark. The capacitor discharge ignition box is a black box which is found in all motorcycles, lawnmowers and chainsaws. Youll want to leave the engine off without cranking for this test. I stopped the tests there since theres no voltage passing the cdi. Youll want to come back to this for reference throughout the guide. 4. And reply with your results, well try to help. enjoys making jams and jellies during fruit season along with cooking meals. I cleaned this off, used dielectric grease and reconnected. My experience has shown a strong blue spark with a noticeable popping noise in a healthy ignition. Post your results and Ill help you pinpoint the issue. Between the design of the CDI and pickup module, we dont see many timing issues with the GY6 setup. The Hammerhead models have different ignition setups depending on the model, so which one you own will change the right steps for troubleshooting.