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. Hi, Spark Test. Ok, Ill go ahead and order a new CDI. How do you know if your scooter's battery is dead? Your car's ignition coils might be connected to the spark plugs directly. Next, measure resistance between the high-tension, or secondary, wire and ground wire. when you turn the key, or as soon as the rectifier is connected, etc). 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. I have nothing coming from stator. I did a continuity beep test at this green wire in the on and crank position It has continuity to ground. It is advisable to test the scooter coil when it is hot. Without just throwing parts at it. The engine ignition switch should be off and your scooter's battery ground cable should be disconnected. Appreciate any help, way too many hours invested in this job. If not, take note of which engine code you had. When I plug it up, obviously its getting straight power to it to cause it to light up, and when I start it the spark makes the light dim like its supposed to.. Ahhhhhhhh The good news is that you only need one gadget to help you figure this out. Make sure that it is gapped to the manual's specs. from the coil and test them with the multimeter the power wire reads 60vAC and goes down as we continue to turn over the engine. Which wires are left over? The resistance result should be very low. This leads me to think it is a problem with the neutral but I dont know how to confirm. 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. Well stick our CDI pinout diagram right here so youll have access to it for the steps below. Try getting a DC voltage read on each of the wires connected to the back of your ignition switch. Read the comment above yours about how the trigger wire/circuit works. I grounded number 4 pin and cut wire on number 5 pin. I move on to step 2 checking CDI but have no voltage at ignition coil. abd i have no spark. I just would like to thank you guys for this article it simplifies the entire ignition system. When I turn the key on I get 1 spark and thats it. Have you removed pin #5 (Kill Line) from the CDI plug while testing? 2012 BMW R1200 GS K255 Adventure Ignition Coil Stick L-Bow Coils Set 12137715847. Try checking the inlet boot for any cracks or dry rot. 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. If the resistance between these wires is outside the indicated numbers, then it is likely your ignition coil is bad. 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). make sure your not using the kill switch of the cdi as ground, thats for shutting the darn thing off. That will give me the information I need to be able to help. I believe it did jump to 23 once or so but mostly around 3 to 13 vac. BS in Industrial Technology. Changed fuel lines and back lines with new gas. The fuse blowing problem is most likely related to the regulator rectifier and also likely a separate issue from what is preventing spark. Make sure your motorcycle battery is fully charged. Thanks in advance. Can you tell me what this box is and will it keep the scooter from firing? It may read 12 volts, it may not. Note: If all of the ignition coils aren't delivering spark, the issue is likely with the control side (primary side) of the ignition system, rather than a single ignition coil. Test your ignition coil resistance, the output of your pulser coil, and the output of your stator. 1. Turns over great has great spark and compression. The minimum we have seen working is around 18vAC. Diminishing Power Output. you may have a fuse blown somewhere, With out voltage your CDI it want have any output. Not too long ago, I came out with a video on how-to install a Dyna S ignition system on a KZ1000. 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.). 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. 24.0 v. Let me know your resistance number, and well move on to the next step. With cdi plugged up I get no lights horn anything. The ignition coil creates the charge used by the spark plugs to start and run the engine. No wasted spark. If the stator came with the pulser coil. Are you testing the Red/Black wire for AC voltage, or Ohms? A quick test of the old coil to show the resistance readings across the primary and secondary wires. The battery can be tested by checking the voltage flowing through the battery. Minimum values: Bill, are you using a digital multimeter to test your stator, or is it an analog type (with needle)? 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? I have changed CDI stator and coil any ideas would be extremely helpful. Within the world of stators, there are permanent magnet systems and field excited stators. Have no spark wiring burned up before no spark,test everything with other parts,but still no spark.What could be wrong with it? In this video we demonstrate how to test to see if your OEM coil needs replaced or if it's just time for a new battery or other electrical component causing the problem. Yes, I bypassed the switches and grounded pin 5. The most sensible place to begin is with your car in park, and the engine switched off. 2.99. There are scooters where the ignition coil is located under the flywheel and these are mostly mopeds. He farmed commercial garden produce for several years. It was my KEY SWITCH. Step 1: To test the ignition coil, you'll require a digital multimeter. Before getting started, take a look at this diagram. Helpppppppppppppppppppppppp. #New Arrival# Motorcycle Oxygen Sensor Electronic STC-CS2-L Two-wire High Quality First-line Equipment for Startec Motorbike Fuel System Acces In order to help, Ill need your voltage readings at each step outlined in the guide above and reply with your results. For a complete catalog of parts, see our webstore. Havent had any spark since. I am getting no power from either. Help please. The stator ignition coil puts out about 70 VAC. CDI test. I have omh all the wires to make sure no shorts. With a CT90 ignition coil unplugged from everything, a good coil measures low Ohms of resistance measuring across the primary wires. This guide covers almost any of the 150cc buggies, scooters, or ATVs with the standard AC CDI setup. Too small? 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. 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. seems that is comon on these chineese buggys. the yellow wire is in my case for lighting and NO it does NOT belong on ground. Set your multimeter to read in VOLTS AC. Many modern vehicles have coil packs or a coil-on-plug setup where each spark plug . Like my articles and How-To videos? Jumping the start relay only spinning the starter, but you also need voltage to other circuits for it to run. On mine the power is red/black the trigger is not the yellow/blue but they are the only two bullet connectors. Shorts through the rectifier on these models arent very common; the problem is likely a wire connection having unraveled and is now touching a metal surface. 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. Leo St. George. I cant get fire to the spark plug. While cranking the engine, use a multimeter to check for voltage coming from the Red/Black (CDI power wire) and the Blue/Yellow (trigger wire) coming from stator. It is now up and running & she is able to drive it to the barn again! The kill for the engine is by grounding #1 at ignition switch. Set your multimeter to ohms. This works for breaker point and CDI type ignition systems. 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). Swapped back in old parts, still no change. Shouldnt that rule out igniton switch? Blue/Yellow to Pin #1 I recently replaced the Stator CDI and Coil and still no spark. Let me know which trans you have and well go from there. My Electric Start Button DO NOT WORK Next I Measured from pin 6 to ground and cranked the engine I measured 55VAC. Trigger output 0.1. Step 3: Disconnect the wiring harness for the ignition coils. What were really after is the other lead of brake switch, mark it. HELP! View our Privacy Policy here. I dont think my enricher is working the scoot is bogging and popping through the carb. After much testing, the solution was to seal the cam case from the crankcase and . 5 75.5 volts Open/nothing Since you'll likely need to replace the spark plugs anyway, connect the suspected ignition coil to a new plug with new wiring. I have a yerf dog go kart with a gy6 150cc engine. I have a hammerhead gt 150 with new coil, cdi,and when it cranks the coil fires briefly then quits sparking unless i wiggle key back and forth and starts sparking a little again. But the true test for a coil involved a small tester called a growler. Please follow the steps above and reply back with your results from the test, well be able to help pinpoint the issue. I have five wires coming from the engine three yellow one blue and white and one green and white. I had a problem once thinking my frame was grounded but it wasnt or not very well at least. Thank you for the ignition troubleshooting guide. Have you adjusted your valves lately? As promised: A schematic of the HT ignition circuit and some musing. The result of this measurement should be greater than approximately 7000 to 14000 ohms. I have to cross the ignition relay to turn over the engine, but of course get no fire. I get correct ac voltage at cdi power, trigger wire, and cdi output. 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