If youd like to send your rectifier in first Id be glad to test it for you so youll know its condition before investing money in parts. (These are both bullet-style connectors). ALSO MAKE SURE COIL IS TIGHT ON GROUND. If not hen I would replace the spark plug wires. Idles for a few seconds and dies. Replaced all. Plug in the stator, CDI, ignition coil, solenoid, and starter switch and you should be able to start the engine. No spark. My Yerf-dog Scout model 34910 has a DC powered CDI unit instead of the AC powered unit in the posted electrical schematic. then it turned off . When does the fuse blow? Like my articles and How-To videos? Thank you! 125cc atv. Do you have a suggestions? fist we replaced the sator rings worked really good first few days then stop working. GY6 150cc Ignition Troubleshooting Guide: No Spark? All you will need is a multimeter. What should the voltage coming from the CDI to the coil be? assuming Im testing correcty. Now before when it did fire I had the stator red/blk wire going into the Voltage regulator on the red wire pin ( normally the red pin is the battery input to the voltage regulator) So I had a Y connection on the red/blk stator wire one to the CDI and the other to the Voltage Regulator but it would spark and run. You can trouble shoot the key switch with a multi meter. So, maybe its in the plug?? Followed the steps above (including bypassing switches) and got these results: Stator to CDI input: 68v to 71v if thats the case its working perfectly . I have replaced the CDI with the better one and motor ran ok for about 4 starts. I have a 150cc GY6 ATV that is getting 30 VAC to the coil but no spark. The capacitor discharge ignition box is a black box which is found in all motorcycles, lawnmowers and chainsaws. $13.40 shipping. I bought mine for $25 and it works great. I am getting no power from either. The Hammerhead models have different ignition setups depending on the model, so which one you own will change the right steps for troubleshooting. Thanks. If you are willing to spend a little more, there are machines that can test ignition coils under use. These are usually located right on the engine, either bolted directly to the spark plugs or mounted remotely somewhere on top of the engine. One is brand new and other came on Buggy. Blue/Yellow to Pin #1 In order to access the spark plugs and the coil, remove the seat of the scooter as well as the gas tank. Im lost. Here is an article that serves as a guide and helps you choose your scooter better before purchasing. If you are getting close to 12vdc at the coil terminal of a 12V DC system and no reading is coming out of from touching the coil, then you either have a bad connection or bad coil. But the true test for a coil involved a small tester called a growler. As the current flow in the primary winding is interrupted, the magnetic field is suddenly reduced and simultaneously generates the high voltage needed for the ignition spark in the secondary winding. Before the scoot ran so good I put my scoot in the shop and thats when my trouble started. Enter your name and email to get notified when new content becomes available. Output ac voltage from cdi to coil peaks at 50 The steps to test the high voltage coil of your scooter. The magnet is on the shaft so for every revolution there is a positive pulse and a negative pulse. 1. Mar 22, 2016 #6. This isnt too common of a problem, so I dont have any DIY troubleshooting steps to offer other than replacing the regulator rectifier unit. Cross country truck driver -- over dimensional freight Helm is an accomplished DIY craftsman. Youre right, your stator seems healthy. Look for blue sparks. I have a diamo torino 150. 4. The ignition system should all plug in for your scooter without having to modify anything. Fuse blows. 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.). Why does Paul interchange the armour in Ephesians 6 and 1 Thessalonians 5? I had a similar problem on my Baja Dune 150. I get backfire once in a while. but wanted to get some feedback if any of the steps are avoidable due to the symptoms. The pickup puts out 2.2 VAC. It is getting worse, any ideas? Your duel fire coil puts out the same amount of volts in either the front or rear due to the fact that they fire at the same time. Thank you for your help. I did a continuity beep test at this green wire in the on and crank position It has continuity to ground. I followed the test procedures in your post. Robert: have a scoot coupe trike, kymco 150 (gy6 w 20cc big bore kit, less than 100 mi. Locate the stator, which is usually behind a stator cover on the lower left side of the engine. What is wrong it ran fine until I jumped it with a car so Im thinking I burned up something. I have the ground from the battery going to the frame and the engine with new wire and connectors and cleaned contact locations. To test the coil's secondary winding, attach the test probes to the outer 12-volt pole on the coil and the center pole (where the main wire goes to the distributor). 56. Next, place the red or black lead from the meter to the centre of the coil , and to either one of the terminals positive or negative. I then added a additional ground wire from the frame to pin 3 still no voltage to the coil. Question does the Voltage regulator have to be connected? I unbolted the module from the engine block and theres continuity between the wire and the module base. Same both. A friend got a Diamo Velocity 150 that refuses to fire. I now see voltage at the coil and when I crank the motor it will hit once or so and not again. 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? It works based on a trigger mechanism. 1. There are a few reasons for no spark, new coil pack could be defective, crank sensor, ignition module or bad wire in primary circuit, faulty ECM/PCM. Now, start the vehicle and run for several minutes. I have 0 resistance to ground on cable to pin 4 and I have proved that the ignition takes the cable to pin 5 open circuit and back to ground(also checked this didnt change during cranking). Sometimes the cap itself can add extra resistance to the results. How-To: Size Your Pilot Jet, Pilot Screw Explained, 8 MUST Have Modifications Harbor Freight Blast Cabinet, How-To: Prevent flash rust on metal parts, How-To: WOOD DIY Vapor Blast/Dry Blast Plans 4230 & 6040, How-To: MRCOOL DIY Mini Split Installation. Ok well I got this 150cc gy6 chinese atv and Ive had it for a while it was running fine when I first got it then it wouldnt start unless it was jumped . it does try to start for a couple seconds. Ahhhhhhhh I have just replaced my stator due to the black/red coming up ofl and once I put it in it fired up and drove for about 6 hours of run time and it is back to ofl and not running. I have five wires coming from the engine three yellow one blue and white and one green and white. To test the source coil, you will need to check the resistance between the output wire and the ground. Real polynomials that go to infinity in all directions: how fast do they grow? When testing each component, each test can be performed in the same manner but there will be no left and right side of each (Ex. Hi I recently acquired a crossfire 150r GY6. Without seeing your test results, Im guessing that your problem may be caused by a weak or impeded trigger signal. Bill, are you using a digital multimeter to test your stator, or is it an analog type (with needle)? 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. Did I get an engine with a bad unit? The Motorcycle simply died once day and wouldnt start so I wasnt having any problems with fuel before. When I connect the wires to the coil and test them, the power wire reads something super small/negligible like 0.1vAC 4. The best way to tell if the coil is bad is to perform steps the steps above. I think I may have put my stator on upside down. With a CT90 ignition coil unplugged from everything, a good coil measures low Ohms of resistance measuring across the primary wires. Follow the step by step guide below to test an ignition coil in a bike. Primary Test - 4.5 ohms. Most people or even shops do not own one. I cleaned this off, used dielectric grease and reconnected. H.R. problems contact webmaster@doityourself.com. turns over easily 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. Thanks. I NEED HELP!! So I did a voltage test to see what is lighting it up my green wire going into the cdi has 12 volts with the key off but when you crank the engine or turn the key to the on position there is no voltage at this green wire. Could this possibly be the CDI box? Regulator rectifier gets warm/hot to touch in this 30-60 second period. Summarize The 5 Best Ignition Coils For Motorcycle. Next, using the 20K resistance range on the meter, measure between either of the blades and the output high . I bought mine for $25 and it works great. I am very uneducated when it comes to motors. I also think it is a shorted Regulator. If so, I agree that it sounds like the CDI is bad. I have good voltages all the way to the coil with the coil unplugged. Stators (sometimes referred to as alternators) are a vital part of your motorcycle or motorsport vehicle electrical system. Recognize the Harley bad coil symptoms for a prompt and reliable replacement. Desperate to get this running for my kids please help! Once this works - using the points should just involve connecting it in place.. Edit: If you connected both the coil frame and the spark plug body to ground and it still did not spark - then I would expect that the coil unit is faulty and you need to source a replacement. Havent had any spark since. Thanks. We have replacement CDI pins and connectors if this ends up being the cause. Have also checked fly wheel and stator, still wont run.. William, have you taken a look at your intake inlet? My gy6 does not spark while cranking, but just as I let off the key it fires. Are you testing the Red/Black wire for AC voltage, or Ohms? Trigger 0.1 VAC also where is your ground coming from? The CDI is usually connected with insulated leads and pin connectors. 3. So where did I go wrong either now or before ? Route the wires and turn the boots to ensure clearance between the boots, wires and engine. I dont see that in your troubleshooting. yes the gods were on my side today, one to put in your dairy. So this means CDI is bad right? What model number and year (if you know) is your Twister Hammerhead? Im lost now dont know what else to try. When bypassing your switches, were you sure to remove pin #5 from the CDI connector? Now move the positive lead to one of the other coil terminals. Actually, I cant recall a single confirmed example of a confirmed problem with ignition timing over the years. The 0v on the trigger wire does seem to be the problem though. In what context did Garak (ST:DS9) speak of a lie between two truths? the cam case was not draining properly. They do make harness kits. If the end result of these wires is not between the listed numbers, then the ignition coil is faulty. Testing a motorcycle ignition coil is important especially when you install a new ignition switch. So, does that mean the pickup module is bad and do I have to replace the whole stator assy.? He built every permanent building on his current homestead and did all the plumbing and electrical work. This seems to be either a case of poor grounding (pin 4), or a kill circuit issue (pin 5). 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 . Is this a symptom of other issues?? It should be between 0,5 and 1,5 ohms. The CDI Unit is powered by the AC current coming from the wrapped stator winding. In my mind, from limited experience with other engines, this seems to be a timing issue however I am not sure since the CDI is the brains. It could be the wiring, or it could be the ignition coil, or CDI. Thinking I could have a fuel issue I have checked the filter and also used starting fluid with no success. Replaced the coil and the spark plug and still no fire. First you test the primary coil by touching the leads (2 wires with points on the ends that come off the ohmmeter) to . Originally I was told I had a bad ground in the system. Not a fuel or carb issuetook it apart and was whistle cleansprayed jets out with cleaner anyway. I overpaid the IRS. If not, take note of which engine code you had. Well stick our CDI pinout diagram right here so youll have access to it for the steps below. Shouldnt that rule out igniton switch? Is there a way to shut it off with the key? 5. I suppose I should get over that. DoItYourself.com, founded in 1995, is the leading independent Meggering out the individual wires say on 500v would have shown this and also a good way to check if your earth is good and not corroded, thats if you have access to a megger or electrician friend. Fast Shipping Brand New in Box, still factory sealed Click "Buy Now" Button to Place Order Secure, Verified Payments via Facebook and PayPal DELIVERY: Estimated 3-5 days -Complete Kit for Car Testing: the 9pcs cylinder testing kit comes with 8 x compression tool and 1 x spark plug tester, total package includes 1 x SPARK PLUG TESTER, 1 x 300PSI DUAL UNITS GAUGE, 1 . No spark I replace the coil cdi and stator with no difference. Which transmission do you have on your GTS150? All rights reserved. One other thing, the first time that I tested the stator ignition coil, it was still connected to the cdi unit, and the VAC reading was much lower, is that normal? Red/blk from stator (New) = 60VAC, blu/ylw = 6.5VAC I assume has less then one volt ac. I believe youre on the right track with cleaning the carburetor, especially if its been sitting a while. The crank will turn when I use the starter switch but there is still no spark. Continuity is normal through the pickup module. He farmed commercial garden produce for several years. Very good. Im not familiar with the ignition system on 250cc class buggies. Starter is New. Thanks to this guide I found out the Stator was not producing a correct voltage so I ended up replacing the CDI, Coil/Plug wire , spark plug and the Stator. Happy wife, happy life! It is not the end all test, but it will show if you have an open circuit. The next time I went to it the battery seemed dead (new battery). Replaced coil, cdi and stator. Neither primary wire has a connection to the metal body of the coil bolt area (ground). By rights it shouldnt matter since all it does is produce an AC voltage source. Motorcycle battery that cannot be recharged, what to do? CDI nothing. Troubleshooting the Ignition Coil: I would like to add that sometimes the coil plug wire doesnt sit well on the spark plug so always double check your spark plug connection. It will be marked with a + sign, or it might only be indicated by a number. What causes a motorcycle to lose spark? Remove the plug cap for the test. i have a carter talon 150cc. kill switch isent hooked up right or is fulting out. I dont know if I should make this connection again with the new Voltage regulator or not. Thanks, Terry. I have a Twister Hammerhead UM125 II R. Its been running fine the last few weeks. Secondary test with caps on -26.5 ohms. We are tearing into it trying to locate the problem. Help please. i pulled the plug out and it doesnt have a terminal nut on it, its a ngkcr7hsa i replcaced the stock one around a year ago, and was running fine, i dont remember if it had a terminal nut and if i am having an issue because of this missing, the ngk doesnt seem to want to stay clipped in the boot as i tried to plug the ngk into the boot with the plug out of the motor. Check for continuity along your ignition switch to confirm this. Any help would be greatly appreciated. Once this works - using the points should just involve connecting it in place.. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I cant get fire to the spark plug. 15.45. Set your multimeter to read resistance (ohms). CDI output: Can be 5% to 30% less than the output from the stator. I should have mentioned in my first reply: If your GTS150 has the Forward/Reverse transmission (no neutral), it will have the standard AC system. No power to the coil on my Yerf Dog buggy and cant figure out why. For this, we give you the details on the characteristics and the different types of scooter. Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. Disconnecting this from the motorcycle should not be too difficult. rev2023.4.17.43393. The ignition coil on a motorcycle serves to step up the relatively low battery voltage to the high voltage needed to fire a spark plug. Buggy cranked up. What is the right Stator? Good luck. The switch is fine. The first test you can make with a coil is to check continuity. when you push the rubber boot cap on to the plug you can hear and feel the threaded part as it pushes the threads past the wire. Set your multimeter to ohms. Inventor with two patents (weight training – anti-rollback for manual wheelchair) 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. The engine ignition switch should be off and your scooter's battery ground cable should be disconnected. It goes to your #1 pin on the CDI. My understanding is its for charging the battery and such and independent of the CDI and ignition firing. what can be making my coil fire but not allowing the spark plug to spark? Need help! Step 1: To test the ignition coil, you'll require a digital multimeter. single point, single coil, no merging black/white wires). Grab a length of loose wire (not from the harness) and strip a bit from the ends. Input from trigger module The main purpose of the high voltage ignition coil. Are they a common failure? Ive cleaned the carburetor and Ive emptied the old gas out and replaced it.the spark plug seems to be good. so it sat broke and my kids were bummed because they had to ride the other POS. The tool is installed inline with the ignition coil to determine if the coil is producing a spark. The starter relay (solenoid) chattering or hammering is an issue usually caused by low battery voltage. Have a friend "crank" the engine. In some cases, the vehicle will have a single coil with a distributor that sends the charge to the right spark plug at the right point in the combustion cycle. Ive traced the wire almost all the way and havent found a problem. Note the wrapped ignition winding, and trigger module. The magneto (generator, alternator) has 2 poles. I have a GY6 clone the Super-Bee. The voltage regulator is not connected DISCONNECTED, Voltage at the red/black stator wire not connected to CDI is 110 v AC I disconnected the harness from the stator and at the other end, at the rectifier and still show ground. When this happens, it prevents spark. The ignition coil has 2 . An ignition coil (or spark coil) is nothing more than a low frequency auto-transformer with a relatively high turns ratio. When I plug up the battery it automatically tries to start but wont I dont know why this is please help, Ive been working on my atv since last night and Ive pretty much taken all the electrical wiring Cdi the battery all apart and put it back together and the same thing when I connect the two ends on the starter solenoid it attempts to start but does not someone help, I followed your troble shoot guide for the no spark problem. I have omh all the wires to make sure no shorts. Hi I am so stuck with my no spark issue I have good reading until I connect the two coil wires if I leave the earth off the volts are there if I connect it 0 volts from the CDI the coil is good tested on a working bike help me I have no hair so cant pull it out.
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