No Spark ATC, ATV, UTV, or Pit Bike, $20 diy CDI fix, Step by Step Build! 

I ran across your video, and like I said to my neighbor, "bad grounds can make you run-a-round," it'll cause your machine to misbehave and not do what it's supposed to do (No Spark). I appreciate your clarity and will show him this video on creating a pit bike. He bought several repair bikes to repair and sell. It's new to him and a good learning curve, so maybe this will save him alot of aggrevation trying to figure it all out. Thanks

Well Harvey - it’s me again but ... I have great news ! You have been an excellent teacher and in my deafness I somehow missed you say ( everything has to be grounded ) so as you know I’ve been pulling out my hair for 3 weeks and still no spark until the light 💡 above my head went off and in the middle of the last night I went back out to my shop and made grounds for everything! Well I kid you not I HAVE SPARK ⚡️! So thank you very much for putting up with my constant questions, I just wasn’t getting it . This video was by far your most in depth as far as the pit bike harness. Thank god there’s people like you to help old farts like me out when there stumped 🤔. I’ll always be a supporter of you and your channel!

Hei Harvey. Thank you so much for making this so easy to understand. Wiring has always been a real big no no in my book. but you made all of this look so simple. I watch a guy do this to his old Husqvarna 430 two stroke some time back, but when he did it i just sat there scratching my head only understanding a 1/4 of what he said on his youtube video.... And now a can build myself a harnes like yours and always take it with me when looking to buy new(old) bikes, Thank you again for making this so easy to understand Harvey. Greetings from Norway.

That worked amazingly. I was 2 days away from swapping my 200 es Big Red

Just wanted to let you know I have been watching many of your videos and I have a chines ATV that had no spark could not get to spark ran battery down 3 times trying to start over heated starter just wouldn't start! Then I remembered you built a portable cdi, coil, power all in one "box" that eliminated the bike completely . I watched the video again and rewired the bike according to your "box" and 2 cranks and running ! Thank very much I was getting close to junking it !!! Many thanks and my grand kids thank you also!

Thanks. I'm glad you do these ever so often.

I look you up every time I have to explain spark in a bike! Thank you so much!

I have watched probably close to 30 videos trying to fix this....best video by far!! Thank you!!

Thanks for the info.!! This video shines a bright light on a dim situation!!

You have just helped me understand when 6 other vids could. Thanks for putting it in perspective for me to understand sir.

GLORY TO GOD!!! THANK YOU!!!

Thank you for these videos they are big time help for me and lots of others please keep doing them thank you again

dang thats simple as it can be. i dont work on these things. but i watch your channel to learn b/c it something i wanna get into.

Most informative, easy to understand video EVER!! I thank you Sir Greatly

Thank you. Saved me a big headache.

Hi Harvey, greetings from Malaysia. Thank you so much for being a great teacher and making this easy to grasp. It's been a month trying to figure out why my ATV has this ignition firing problem. That advise (at 12.50) regarding kill switch is a great one. That black/white wire once remove, able to resolve my problem. Don't know where it got shorted to ground, but I am putting it far away from the rest. Thanks again for the great content. Subscribe done 👍

Brother I don't Think that you could explain it Any better than that great show 👏

This is by far the best video on the cdi and i think im starting to finally get it. The only question i still have is that my cbi module is for a gy6 and the pins are different than what your showing here , right? Can you please show me the difference so i can make the changes? Thank you.

Great teaching as always Harvey💪👍

Blue/white-- from pickup coil that sends the ignition signals as the flywheel outer magnet passes by it. The red/black is from the excitor coil on stator. Would be so great if the language was standardized. A lot of confusion could be avoided but everyone seems to call things different names.

Harvey Spooner : THANK YOU FOR SHARING YOUR TELANTS HERE SIR . BEST BLESSINGS .

thank you for the video I understand it now but I have a E-ton Viper 90r and it has drive neutral and reverse if I wear to wire it like your video will I still be able to put it on Drive? I have no spark as well and trying to get it ready for my son

I got a question would that work for the 200s the spark plug I would just use it for my other atc110

Lol love the no BS attitude. "Go take a nap"

By any chance you have a video with the other cdi like for a 150cc Baja dune buggy

I loving these videos thanks 👌

Kool thanks have blessed one

Hey Harvey I have a coolster dirtbike 110cc e start my bike turns over but doesn’t start any suggestions

Over the years I've came to your channel over and over again! Your my teacher of choice to direct others to your excellent instructions. Thank you again Harvey!

Excellent video,very informative. Can you tell me if is possible to convert a DC cdi to an AC cdi? Thank you

Hi Harvey, your circuit is great but what if I have an AC stator, where does the rectifier go?

Hi Harvey, Thanks so much. My hired help bought a 125 Fly and has been having extreme trouble. Now the bike has ONE spark then goes dead. Let it sit amd one pop is All I can gret. I'm sorta old school and can't remember how I wired the old T/T scrambler to constant loss! Not sure if it can be done on these new bikes. I think I took out the magneto. Question is? can I run 12v to the CVI for a test for spark. Or should I run all the tests from coil backwards Thanks in Advance I live out of the country on a small Island, parts have to be shipped in. A trouble sum deal

Good instructions. Thx. 👍

Awesome good work with the details

If I swap a 2 coil stator to a 6 coil stator with full wire harness would it work on the atv??

On the coil does the power wire go to the green connector or the black

Hey harvey can you make spark by just getting the pulse generator and the bobine ??? It would really help me right now

Thanks

I forgot to tell you I used this system of yours on a Chinese bike that had a nightmare of wiring harness and I used your system worked great thanks for the information

Hey I like your videos could you explain how to set up the charging system on one of those bikes Chinese are a honda Thinks keep them coming . Tony

Any chance do you know if you can swap a chain driven to shaft driven?

Hey Harvey quick question on options for a bike I'm working on. Customer has multiple ppl look at bike 1990 xr80. Primary issue no spark. Adjusted points it was sparking, then Plug stripped out and retapped and fixed. Go to kick the bike no spark.Customer took flywheel off with hammer and now it needs a stator,points everything ignition wise in the case. Magnets in flywheel broke too. Oem parts are expensive and hard to find.are there any alternatives I can do to avoid the cost?

i have AC 6 prong CDI on my unit. i cant figure out where the problem is. can i just change everything to DC CDI (cheaper ). or shout i change everything including stator to make that change. i want to put something cheap so incase i have to ever change anything in future

I bought a 2 stroke kids ATV for my grandson and I thought I could get it going. It has a GY6 long case but the oil is separate from the gas. He told me it was the carburetor and had a new one. He told me it wasn’t electric start and it is. The wiring harness was all hacked together and when I put the new carburetor on I decided to pull plug and check spark No Spark. So I ordered a complete wire harness with the ignition the coil the rectifier the CDI the six pole stator with connected pulsed a blue wire goes to pick up. Now I have the harness hooked up and of course No spark when I put the news stator in I noticed the rust around the drum magneto so I had to clean the rust off I believe that’s why I wasn’t getting spark what concerns me is I have a stNdRd pin plug and pluged it in but I also have blue and red bullit Connectors but I don’t have Ny idea where they go because my only bullit connectors are yellow and black and green and the carburetor also has a 2 pole plug but I’m not getting anything. When I was leaving with it he told me he had it up to 30mph and it might be a 90cc. Every time they give me a spark plug it’s to small my Spark plug is much bigger at the threads. I did some research on it and the Taiwan company is Rely or similar and the engine is a Her Chee just S I spelled it and the CDI I took off is a 2” square stamped metal box there aren’t any slots to hold a CDI or the starter selinoid on the old wiring the CDI and Rectifier we’re screwed into top of rail. I don’t understand it’s all hooked up except the two female bullit plugs from housing the blue and the red unless I have bullit connectors crossed because everything went were it was supposed to except the separate red and blue and blue goes to pick up inside the plastic cover Any ideas?

Awesome good work.

Great explanation vid. 🖒🖒

can this work on a kawasaki 440 ac ign sys. since it fires a spark plug. also can you hook up dual cdi sysytem with these kits

Does the cdi on my Honda that is above the head not get used if I use a new pit bike wire harness

Will this work on lt 160 Suzuki that has a dc cdi no spark

Hey Harvey, your videos really helped me get going on getting a 90cc ATV wired up. I've got everything wired up correctly and confirmed all my grounds. Left the charging system out, powering the starter directly from booster pack. Getting volts out of CDI lead to the ignition coil. CDI light flickers when the starter is turning and reading about 20v supply to coil but not sure what that means since it operates off the pulse signal too. Getting no spark when grounding the plug and turning the starter with booster pack. Tested the spark plug is good in another engine. I've used two ignition coils could and both tested good with about 7k ohms across. I would assume everything is good up to the CDI since the CDI is giving power when the flywheel turns. Don't have any interlocks or kill switch wires up. Any ideas?

Mr Harvey I have a Chinese 250 2 cylinder, I have two questions. There is no red and black wire coming from engine besides blue and white there is a green and white and green and red? And can I pat both coils off yellow and black?

Where is the regulator on a 2017 coolster 70cc dirt bike?

Could you tell me where I went wrong with my bike I've changed all new parts from stator,magneto, ignition coil, stater coil new spark plug had it going I also switched cdi box to racing cdi box did some adjustments and my stater hit ground and after that it didn't want to

Hey, I'm not sure if it has to due with the CGI or the carborator maybe, but I have a 2016 Taotao T-Force 110cc. The idle seems to be good and steady, and reverse runs strong (maybe a putter from the carb or somewhere by the carb) the only problem is drive, it kinda feels like it's in 4th gear or something. No torque, and it also seems like if I only give it 1/4 of throttle it runs okay, until it goes as fast as it will at 1/4 throttle. As soon as I give it more, it starts to die out and sputter. Any ideas would be greatly appreciated. Love the videos, your a genius! 🙂

Good video! Now I just need to buy a Honda to fix up.

Hi, great videos, just got a tao tao.. quad did run before. Had to change starter clutch/flywheel. Now I get Little to no spark..so it won't run.. could the fly wheel be different with the magnets? It will throw a occasional spark but its not that strong when it does..

Nice job

Just bought a taotao db20 will not start toke a screwdriver to ignition got spark start spin. I thi6 its wired wrong. Help please

Great!

You said if bike dies wont spark cut black wires to check if its n on and off switch?. I have a 2003 ltz400 suzuki rode fine shut off random n woods got it home now i turn on switch press start 1 spark then no spark and if i flip switch does again 1 spark then none. How can i check to see if its in my switches

Is it possible to test a cdi box wen on bike Wen there is no spark

Got a question why is my bike it's a Honda Four Track eating that CDI box I bought three of them and it keeps on burning them up why is that

are these all mainly 6volt on the Chinese motors

I have a 2007 atv but how can i tell what;s the make & model ? oh yes and wan i got it i did start but it woulded run so i cleaned carb got new coil an cdi and plug but not getting spark ???????

I have 2002 yamaha bear tracker 250 no spark put yamaha new stator assembly when I try starting no voltage coming from pick up coil

Would one of these fit 1988 suzuki 300 2x4. Or could find something to fir.king quard.thanks

Great walk through !!! Do you have a video on how to verify if each component works or not? My atv was running and just rebuilt my carb but now lost spark ?? I assume I lost a ground somewhere or have a bad coil/CDI?

Hey I need help with a go cart getting power to everything but no spark

Thank you for your input on how to wire me stupid Chinese motor.Very helpful.Good luck in your future projects as well.

Have 2004 400 ex wire jacked up do I need ac or dc cdi

I have a stupid question, will this pit bike kit work on a Kawasaki bayou 400 ? All this stuff is new to me, thanks for your patience.

What’s the black tube call I need another one mines got a hole in it

I have a450 Honda foreman 2000 no spark replaced cdi coil wire to plug and plug still no spark is there a way to test stater and coil

I purchased a Otohans wiring harness from Amazon. I want to add a remote start but cant find a plug on the harness for it. Any help would be appreciated.

Great vid Harvey

Linhai 260. What should pick up coil out put voltage be mine is .2 Two tenths of a volt AC?

But how do you get power to the starter

Harvey i thought since you are electrical engineer there is a guy who broke down the internal circuitry on the cdi and thought id share w you and others. His channel is LearningZone. Really neat to see the internal circuit layout. Not sure if your interested but thought you might be...Stay safe..Thanks for the vids...

Hi, can I put the Chinese cdi on 98 arctic cat 400 4x4? Thanks

Hi. Fantastic informative video. Can I ask how do you know your pulse generator and stator coil are good ? how do you test them ? Regards Jim.

I have a 2006 honda crf150 and I've done everything I can possibly do to get it to run. It has a starter and battery .what in the world am I supposed to to make this run and charge.im getting told that it's a ac unit/ stator but the stator only has 3 wires coming out of it. White green and blue. No red with black tracer for ac power or DC power. ?

Man I'm getting it now, man thanks I bought a yamaha warrior 1989 and I have 12v but I dont get no power to the starter,no lights, no nothing so I was checking and your videos and now I'm trying to figure out how everything works thanks to take the time to make videos to help other people.... thanks again

Thank you so much. This makes it all easy to understand.

Hey harvey thanks for the video,what would be the process for a two cylinder? My CDI ECU box 9 pin for my 1981 Yamaha virago 750cc has been discontinue is there an after market one I could purchase???

Hey Harvey What if I have two wires from the pulse generator and none of them go to ground ? They go to oem CDI and I tried one the meter to ground but it seems it only pulsed using both wires ? What would you recommend?

Hi Harvey this is Dave looking for a way to hook up a different CDI box to a 500 Suzuki quadrunner 2000 model is there any other universal CDI could use or a cheap replacement

So… I have an Artic Cat 500 and I tested all the wires and have power at the cdi and have power going to the ignition coil BUT it will not produce a spark to the plug. Where else can I check?

Hi, where did the greeenwhite wire From stator go? Bluewhite go to cdi....

hi can i still hav spark with a bad cdi? i was riding, it bogged, then we stopped i shut er down n it wont start now...i have spark, fuel, no smoke, dash lights when key on, she wont turn over......any ideas?

Hey question you seen very knowledgeable on these engines im in a stuck place got a lifan 250cc twin cylinder atv no spark think iys cdi but hers the shit part its a double coil setup single cdi 6 pin ac. Can I run double cdi packs off one trigger wire as the cdi box for this is non exist Thanks

Harvey you rock bro.im the same way.i think i can get anything running.i just scored a 94 honda 300 fourtrax for 50 bucks from a friend . so i was skimming through the internet and came across your channel.im hard pressed to get this baby some spark.im way out in the mountains and wish i had as much cool shit as you ,but i do not although i have a pit bike and hoping to use the cdi from it to get this going.any tips or help will be much aperciated.i only have one chance to do this .also i wanted to ask you if your familiar with the propeller shaft that connects the rear and front wheel drive together i dont have one .i wanted to know if you think my idea might work.im gonna weld together a couple 12 point sockets to some 5/8 solid steel stock i have laying around .i know it sounds super hoky but like i said im way out in the mountains off grid .my own solar and totaly self sufficient.this quad will be the key to helping me out on my property. making things a little easiar,and funner at the same time .thanks in advance .i apreciate any advice or guidance and your time .take care .joesallaround at g mail .thanks again and peace to you and yours .hope to hear from ya .

My stator has no green wire but it has black is that the ground?

I need help with my coolster 110cc. It's not firing, I bought everything new for it and it's just not firing?

How do you wire a six pin cdi

Smart mechanic Electrician

Will this work for Suzuki

Harvey I need some help. I have a Tao Tao 110. I purchased a complete wiring harness with all new stator, CDI, handlebar switch, starter solenoid coil, spark plug, etc. I hooked up the wiring harness and I have no spark. I’m confused and need some help. I have watched all your videos and can not figure out why I have no spark. Any help would be appreciated. Thanks.

Awesome video thank you for sharing your knowledge with us it is very helpful 👍🏻 (btw, clean up your fricking yard man it's a mess!!!) 😁

I bought a racing cdi with a green light on it after my other one went bad and the green light flashes when I kick it over but I don't have any spark at the plug? Any help would be appreciated

hello there, can you give me some advice?my bike has lights, turning signals, the starter motor works(i assume that piece you say in the video its good otherwise it wouldn´t start) BUT the bike doesn´t start anyway. The lcd/speedometer doesn´t show rpm nor kms, just turns on when ignition is on(neutral light is on) i´ve no spark on the plug, ive already changed CDI, plug and the main fuse Any ideas? :/ its a quad like that one too