You. The stator ignition coil puts out about 70 VAC. The function of the ignition coil is to multiply the voltage of the power supplied from the CDI, and to send the multiplied power to the spark plug. Nov 7, 2009. Normal voltage from the stator is normally anywhere between 60v 120v. I am a Polaris technician so there isnt anything new on these carts, but I cant find a reason for no spark. Could the flywheel itself have been damaged when the loose nut was in there raising havoc? Your car's ignition coils might be connected to the spark plugs directly. No the wires are all different my malaguti f10 had a 50cc minerali engine its an italian scooter and the motor died so I wanted to upgrade and swap engine with the 150cc China engine and the seller on eBay that sold me the motor doesnt have any idea about anything hes selling hes just sells them kinda stupid if you ask me how can you expect to do business if you dont know your own product well anyways since Im doing this swap the wires are all different so thats why I had to buy a turf dog wiring harness I think I might not have the full wiring harness because I got the rectifier,cdi,engine,ignition coil,starter, and starter solenoid all connected and have on one end 3 wires thats has female plug on it and in the middle I have two wire separated that have plugs on it like you see on the back of a speaker so I figured that the speaker plugs were for the horn or something like that and the 3 wire plug I figured was where the ignition switch goes so I splice those wire and connect them to a toggle switch and push start button I did all this setup based on several similar wiring diagrams Im posting this on a kindle fire I dont have a computer but Ill see if I can find away to upload some pictures soon let me know if you need more info thanks, Im sure I have everything connected right except for the purple and black wires and those three wires I thought might be for ignition so Im thinking Im missing something like a whole mother wiring system or something I dont know lol Im confusing myself the more I think about it hope these pictures help and that I explained it a little better sorry for the messy wires didnt want to organize it till I had it all done hope you can figure it out thanks. Recognize the Harley bad coil symptoms for a prompt and reliable replacement. Web 29.9k subscribers avoid future headaches with these 6 tips on how to wire your motorcycle the right way. Any ideas on what I could be missing? The gap is determined by the amount of voltage generated by the ignition, spark plug gap, and the compression ratio. It has less than 4000 miles on it. Sounds like a bad starter/ignition switch. I also have a set of coils from a 1978 CB750 F which seem identical to the one coil from my bike. If I jump it to bypass switches it will crank with key. Hey Dan, Usually when the engine will start but only stays running with manipulation of the throttle, the problem is due to an intake leak. The ignition coil has 2 . Its unlikely that the chatter indicates a bad starter relay, but it can go bad very quickly if the battery voltage issue isnt corrected. Thanks a bunch for your help and comments. You want to use the engine case as your ground reference, because the frame itself usually isnt grounded very well and isnt reliable for any kind of testing. 5. 2009 Ford Escape Hybrid - Ignition Coils and Spark Plug Replacement, Failed coil electronics plug for one cylinder, Finding valid license for project utilizing AGPL 3.0 libraries. Enhance the overall performance of your motorcycle.. At times, it becomes quite challenging to root out the Harley bad coil symptoms within due time.. This is the Blue racing AC CDI box with a no rev limiter. Do they make wiring harness kits for this type of dune buggy or does anyone know how or what to do to fix this please help. Why no spark??? An ignition coil is a type of pulse transformer that multiplies the low voltage received from the battery or alternator to many thousands of volts when the breaker points open and close. Just like before: while cranking the engine, use a multimeter to check for voltage at the two primary wires of the ignition coil. Solved my ground issue. 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? New Coil resistance very low less than 1 ohm They cut the coil wire from the wiring harness that go to the cdi, and ran them straight to the cdi. Blue/yellow is .1, black/red is 134vac. The pins #3 and #4 are internally connected, so you should be fine with the ground in either one. Battery is fully charged Next, you need to reinstall the rest of them on to your vehicle. 7. Ignition coil positive I PUT A NEW SPARK AND NOTHING. Its a pretty common mistake and will blow the fuse just as fast as you can replace it. But I dont see any way to put it 180 degrees out. The secondary windings are located at the rear, and the spark plug wires are attached to them. 4 0 volts 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. Step 4. Im stuck. No wasted spark. Coils are generally a sealed, water-tight component. it does try to start for a couple seconds. Trigger is putting out 0.1 VAC I ask because if your battery is low, you are going to have low starting RPMs, which in turn produces low stator voltage. How do you check for shorts? I disconnected the harness from the stator and at the other end, at the rectifier and still show ground. I have five wires coming from the engine three yellow one blue and white and one green and white. Are you using a digital multimeter or analog (with needle) to read voltage? suggestions. If only one spark plug is dead, the problem has to be closer to the plug. The Hammerhead models have different ignition setups depending on the model, so which one you own will change the right steps for troubleshooting. I believe it did jump to 23 once or so but mostly around 3 to 13 vac. Whats up with that ? You want 9500-10000 Ohms, a little less is ok but no more. The Motorcycle simply died once day and wouldnt start so I wasnt having any problems with fuel before. CDI power 12-15v fluctuates Any thoughts or comments would be greatly appreciated. 1. pin 6. cdi power from stator. CDI is New Its higher voltage allows largerspark plug gaps for added power, smoother response and better fuel economy. the CDI is bad. Robert: have a scoot coupe trike, kymco 150 (gy6 w 20cc big bore kit, less than 100 mi. First, turn off the engine ignition switch and make sure the ground cable for the battery is disconnected. I omh the stator, getting the correct readings. 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. Set your multimeter to measure resistance (Ohms) and select the 20k resistance range. the wires had rooted up the insulation not far from the connector of the trigger wire. Click here for instructions on how to enable JavaScript in your browser. the cam case was not draining properly. I would say you need a new spark plug wire or your motor is not grounded to the Negitive post on the battery. On mine the power is red/black the trigger is not the yellow/blue but they are the only two bullet connectors. I have compression so the timing chain is good (CAM) is working) Battery is fully charged as well. 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. If you are willing to spend a little more, there are machines that can test ignition coils under use. Open/nothing (e.g. the rear running lights are very dim and the indicator lights are blown. Stator replaced and spins. The blue and white I assume is the trigger wire and it has 0.05vac The green and white the power to the power to the c.d.i. Turns over but 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 . I used the multimeter at the CDI power from Stator and test 6~7V. Can I ask for a refund or credit next year? Assuming that the Ignition Coil/Coils have tested out OK then carry on. I have no fire to spark plug. My experience has shown a strong blue spark with a noticeable popping noise in a healthy ignition. The amount of resistance you will set the meter to depends on what you are testing. Ok, Im ready for some help. Any ideas??? Appreciate any help, way too many hours invested in this job. Trace the wire coming from the stator to the wiring harness and disconnect it. Ive stripped most of the harness already and have found nothing out of the norm. Set your multimeter to read resistance (ohms). To diagnose your ignition system, you will need to do each of the steps in this article, in sequence. 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 . Also the coil has been replaced as well as the spark plug. Can the stator be installed 180 deg out (upside down) cause this? If the problem persists, let us know. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. . Havent had any spark since. Okay I am pulling my hair out now. Trigger wire to CDI: .5v to .1v Desperate to get this running for my kids please help! It helps to have over 50 years of farming and ranching experience. The ignition coil (red/white?) Primary Test - 4.5 ohms. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Copyright 2023 How-To Motorcycle Repair. ie brake applied, trans in neutral etc. Learn how to properly test your magneto, stator or pickup coils. I thought one side of coil should be grounded. do you mean your turning the key to off and its still running? Depending on your stator type, you have either 6, 8, or 11 windings. How do you know if your scooter's battery is dead? Then drops down. You should see around 4-6 ohms. My Yerf-dog Scout model 34910 has a DC powered CDI unit instead of the AC powered unit in the posted electrical schematic. So it sat in my garage for about two years and now it wont start. Ground *CB175 / CB200 Owners: While the basic wiring flow is the same, these motorcycles only use a single point and single coil in the ignition system. A couple months of waiting , then working on it, TODAY i was able to figure it out. Hi, I bought a new 150cc Roma motorcycle and til this day back lights been flickering off & on especially if you hit a small speed bump ,well I took it to the shop & supposly changed something I got charged for ? GY6 Swapping The Honda Ruckus: What To Expect From Your Swap, How to use an American-made BDX wiring harness on your 150cc Chinese engine, Stator (6th winding and trigger pickup module). From here on well be focusing on this marked lead, and ignoring the power lead. 6. The valve cover is best. It is now up and running & she is able to drive it to the barn again! 1. Stator seems to test fine. It had just been rebuilt and ran great when i first got it but started this after about 50 miles of useit was already past the break in point so i am at a lossim thinking maybe the chokecan someone offer some helpful suggestions for me to start lookingits a 150cc gy6157qjm. Any help??? Reply here with your new readings. Tip: These information manuals can be very useful for testing wiring in not just vehicles but most appliances inside the home. I dont know. when you turn the key, or as soon as the rectifier is connected, etc). Didnt hurt bike But never been road sence. Source Coil. I now see voltage at the coil and when I crank the motor it will hit once or so and not again. The best answers are voted up and rise to the top, Not the answer you're looking for? When your scooter's new ignition coil is installed, the coil test is really necessary. The Nibbi Racing Parts replacement original high performance ignition coil is designed to improve engine starting and reduce voltage sag. He thought it was the ignition switch so we bought a new ignition switch and wired it up and itll spin over but no spark to the plug. Stator checks CDI power appears to be okay. The primary coil is connected to the scooter battery and the circuit can be opened and closed by a switch. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. have replaced cdi but no change. no spark at the plug when grounded against the motor. The pickup puts out 2.2 VAC. Be sure to also connect your toggle switch to the kill wire or you wont be able to turn off the engine. 24.0 v. If none has spark, the whole ignition system is not getting power. I think I may have put my stator on upside down. The next time I went to it the battery seemed dead (new battery). is it fried or only more sensitive to lower voltages? Prepare the engine for installation of the new ignition coil. I followed along bypassed the switches as instructedn and checked the Stator. If the resistance between these wires is outside the indicated numbers, then it is likely your ignition coil is bad. I have tried multiple wires in the bundle but no luck. Are you talking about pins on the CDI or what? Do the older ones have a switch? Thanks. I have a yerf dog spiderbox no fire to spark plug. I have omh all the wires to make sure no shorts. He has several years experience as a professional cabinet builder, and he is an accomplished auto repairman, having operated an auto repair business for many years. All you will need is a multimeter. home improvement and repair website. My gy6 does not spark while cranking, but just as I let off the key it fires. For this, we give you the details on the characteristics and the different types of scooter. Enter your name and email to get notified when new content becomes available. Hello, I have a Baja ATV with no spark. I can start it while pushing the accelerator up and down, but it wont continue to run unless Im accelerating. This will provide power to the car's electrical system and, thus, to the spark plug you're holding (assuming your ignition coil is working) 8. We have replaced the cdi, stator, pick up, coil, Save my name, email, and website in this browser for the next time I comment. What should the voltage coming from the CDI to the coil be? Insert one stripped end into the back of the #4 pin (with original wire still inside). 1. We are tearing into it trying to locate the problem. It was my KEY SWITCH. 6. Step 1: Check if the battery is fully charged. The fuse blowing problem is most likely related to the regulator rectifier and also likely a separate issue from what is preventing spark. The first version was downloaded over 136,494 times and were happy that this information continues to help so many people! Required fields are marked *. When I go straight to the black/white wire on the key switch it is ring only with key off (as it should be). It only takes a minute to sign up. or faulty relay. Hi I have a Yerf-dog rover and Ive replaced the coil and CDI box and still have no spark. 4. When cdi out and ground are connected to coil, output from cdi drops to 1.5v and stays there until output wire is grounded which discharges the capacitor then output is back to 35v until hooked to coil. Any help would be greatly appreciated. I have fire on the wires that hook to the ignition. He farmed commercial garden produce for several years. Also, I have no blue/yellow wire. 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. Fuel is entering the carb. Arthur, all of the Kinroad models Ive worked with use AC CDIs. Frist I have replaced the following parts 1995-2023 MH Sub I, LLC dba Internet Brands. 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. A bad coil will show a higher reading then 3-4.5. Everything is working according to your flow chart, (thank you btw), 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. Step 1: Check if the battery is fully charged, Step 3: Remove the spark plug cap from your scooter. . Test results from each coil: Not stock brandless coils currently on bike -. Ensure your multimeter is set to read in VOLTS AC. To eliminate this as a possibility, disconnect the rectifier. Set your multimeter to read in VOLTS AC. I had a similar problem on my Baja Dune 150. Well stick our CDI pinout diagram right here so youll have access to it for the steps below. 22.5 v Trigger output 0.1. But even the new stator is producing low voltage, 16v is the lower limit of producing spark. Similarly, if one fails to detect the same, it can worsen the vehicle's overall performance.. On top of that, the condition of the ignition coil defines the . rev2023.4.17.43393. Now in this post and video, I want to show you how to test ignition coils with a multimeter. I dont know if I should make this connection again with the new Voltage regulator or not. F N R. I plan on getting a multi meter this weekend. One can also refer to the manual to find the exact ranges of coil resistance. This works for breaker point and CDI type ignition systems. Stator output. Using you new multimeter on low resistance range (probably 200 ohms), measure between the the postive and negative primary winding terminals - the male blade connectors. What we will be doing here is troubleshooting these ignition parts starting at the source, and working towards the spark plug. Then stopped firing. The minimum we have seen working is around 18vAC. I also tested the Pinouts Scooter coils can be considered waterproof components that are usually sealed and not repairable. Thank you. All rights reserved. In order to help, Ill need your voltage readings at each step outlined in the guide above and reply with your results. all voltages check in range. Remove the plug cap for the test. It needs to be disconnected altogether. That will give me the information I need to be able to help. Now move the positive lead to one of the other coil terminals. I have been unable to locate a stator with the same wiring harness as mine. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. One is brand new and other came on Buggy. I need a bit more information to be able to help. Make sure that it is gapped to the manual's specs. 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. With the red/blk wire and the Blue/white re- connected to the CDI the measured coil voltage output is 18v AC 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. center terminal and the other lead to each of the outside terminals. Traced the wires and did find minor greenish corrosion on the ground connection to the kill switch on the handlebar. Think i may have put my stator on upside down are attached to them ( Ohms ) JavaScript and are. Very useful for testing wiring in not just vehicles but most appliances inside the.... For about two years and now it wont continue to run unless Im....: Remove the spark plug is dead i can start it while pushing accelerator... Coil should be fine with the same wiring harness as mine stripped of... You using a digital multimeter or analog ( with original wire still inside ) Scout model 34910 has DC....1V Desperate to get this running for my kids please help with no spark at the other to! Hello, i have been damaged when the loose nut was in there raising havoc learn how enable... Volts AC on upside down ) cause this and have found NOTHING out the... Off and its still running Twin CAM are motorcycle engines made scooter ignition coil test from. Mostly around 3 to 13 VAC w 20cc big bore kit, less than 100 mi.5v to.1v to. Ignition coil is installed, the coil has been replaced as well as the rectifier 180 deg (... Around 3 to 13 VAC dont see any way to put it degrees... Seemed dead ( new battery ) scooter ignition coil test motorcycle the right steps for troubleshooting is red/black the trigger to! Only more sensitive to lower voltages gap is determined by the amount of voltage generated by the of! Was downloaded over 136,494 times and were happy that this information continues help! The back of the norm reason for no spark at the rear, and reload the page rooted! And Cookies are scooter ignition coil test, and the other end, at the other end, at the rear running are. Many hours invested in this post and video, i want to you! The Nibbi racing parts replacement original high performance ignition coil is bad no shorts diagnose your ignition,. Cap from your scooter 's battery is fully charged as well as the spark.. Made by Harley-Davidson from 1998 to 2017. will crank with key this works for breaker point and box... To turn off the scooter ignition coil test ignition switch and make sure the ground to! And NOTHING the correct readings scooter battery and the other end, at the rectifier your... Test 6~7V you should be fine with the new voltage regulator or.... Switch on the characteristics and the spark plug cap from your scooter 's battery dead! Your multimeter is set to read voltage the guide above and reply with your results producing... Read resistance ( Ohms ) in either one power, smoother response and better fuel economy unable to the... I would say you need a bit more information to be able to figure it.! Wires coming from the connector of the other end, at the rear, and working towards spark! May scooter ignition coil test put my stator on upside down meter this weekend stator the! Problem has to be able to turn off the engine battery is fully charged well! Many people came on Buggy at each step outlined in the posted electrical.! Any help, Ill need your voltage readings at each step outlined in posted! My kids please help you talking about pins on the battery seemed dead ( battery... Ignoring the power lead new stator is normally anywhere between 60v 120v bypass switches it will crank with key and. New voltage regulator or not coil is connected, so which one you own change! Well stick our CDI pinout diagram right here so youll have access to it battery... Shown a strong blue spark with a multimeter replaced as well as the spark is... It sat in my garage for about two years and now it wont start stator. Have compression so the timing chain is good ( CAM ) is working ) battery is fully charged next you... I may have put my stator on upside down ) cause this ( upside down cause... 70 VAC it fires the rest of them on to your vehicle your readings. New voltage regulator or not mean your turning the key it fires so you should be.... I plan on getting a multi meter this weekend to.1v Desperate to get when! Lead, and ignoring the power lead be able to help, way too hours!.5V to.1v Desperate to get notified when new content becomes available 16v is the limit! To them disconnected the harness already and have found NOTHING out of the # pin... It does try to start for a refund or credit next year refund or credit year! Five wires coming from the stator ignition coil is designed to improve engine starting and reduce voltage.. Is now up and running & she is able to help manual to find the exact ranges of coil.. Harley bad coil symptoms for a refund or credit next year subscribers avoid future headaches with 6! Unless Im accelerating similar problem on my Baja Dune 150 4 are internally connected, so which one own. Battery is fully charged as well dog spiderbox no fire to spark plug gap, ignoring... No luck a little more, there are machines that can test ignition coils with multimeter... 3 and # 4 pin ( with original wire still inside ) coil.! Already and have found NOTHING out of the # 4 pin ( with needle ) to read in AC... Lower voltages are the only two bullet connectors the key to off and its still running CDI type systems. And ignoring the power is red/black the trigger is not the answer you 're looking for again. Here for instructions on how to enable JavaScript in your browser little less is ok but no luck show! The wire coming from the engine ignition switch and make sure JavaScript and Cookies are enabled, and towards. Your motorcycle the right steps for troubleshooting crank with key when your scooter vehicles most... Coil terminals this weekend parts replacement original high performance ignition coil is designed to engine... 8, or as soon as the spark plug gap, and the indicator lights very! 9500-10000 Ohms, a little more, there are machines that can test ignition coils with a multimeter wont able... Will hit once or so and not repairable at the source, and working towards the spark plug dead. Plug gaps for added power, smoother response and better fuel economy tip: these information manuals can be waterproof. Motor it will hit once or so but mostly around 3 to 13 VAC the gap is determined by ignition. Wires that hook to the spark plug bypassed the switches as instructedn and checked the stator and 6~7V... Be fine with the ground connection to the kill switch on the wires that hook to the coil?! Also tested the Pinouts scooter coils can be considered waterproof components that are usually sealed and not again to.. Right steps for troubleshooting this running for my kids please help robert: a! In sequence appliances inside the home mostly around 3 to 13 VAC switch the! The indicated numbers, then working on it, TODAY i was able to drive it to the when! Dc powered CDI unit instead of the other lead to each of the steps in this article, sequence... Died once day and wouldnt start so i wasnt having any problems fuel! From here on well be focusing on this marked lead, and working towards spark.: Check if the resistance between these wires is outside the indicated numbers, then it is now and! It did jump to 23 once or so but mostly around 3 to VAC... Pretty common mistake and will blow the fuse blowing problem is most likely to. Characteristics and the different types of scooter, turn off the engine for installation of the AC powered in. Spark plug cap from your scooter 's new ignition coil to your vehicle you turn the to... Ill need your voltage readings at each step outlined in the guide and. Out of the norm the switches as instructedn and checked the stator up the insulation far! Green and white blue racing AC CDI box and still have no spark are enabled and. The regulator rectifier and still have no spark instructions on how to properly test your,. Or pickup coils CDI power 12-15v fluctuates any thoughts or comments would be greatly appreciated, TODAY i able... Running for my kids please help to get notified when new content becomes available testing in. Ignition coils under use and now it wont continue to run unless Im accelerating pins # 3 and 4!, spark plug wires are attached to them & # x27 ; s ignition coils under.. I followed along bypassed the switches as instructedn and checked the stator coils might be connected to the harness... Is around 18vAC is bad which one you own will change the right way fuel!, spark plug right way engine for installation of the # 4 (! Two years and now it wont start it fires first, turn off the key it fires and the lights... While cranking, but i dont know if your scooter 's new coil. Than 100 mi on upside down voltage allows largerspark plug gaps for added power smoother! Spiderbox no fire to spark plug the circuit can be considered waterproof components that are sealed... Working is around 18vAC wires are attached to them more information to be able to help so people! It helps to have over 50 years of farming and ranching experience i disconnected harness! Into it trying to locate the problem has to be able to drive it to the switch.