GY6 CDI Box (AC and DC Troubleshooting/Wiring)

This video is a breakdown of what a CDI box is for the GY6 and other small engines. I go through what the CDI box does, how to tell if you have an AC or DC version, and how to wire and troubleshoot yours on your machine. I also discuss in detail what the difference is between the AC and DC CDI.

[@chrisstokley7687]

20 videos and congrats : your only1 with even a different way to wire a DC cdi ! omg! the power wire is different

[@dawnsay5279]

Just wanted to say thank you we are trying to get a four wheeler running and have had trouble finding a good video showing how to wire this up yours has been very helpful

[@goaliebrewins1990]

Same here I have a customer that has 2 different ATV GY6 and 125cc engine cdi is always the problem they fry first starting

[@ZiZo.H.709]

شكرا صديقي على الشرح الرائع تحياتي متابعك الجديد من الجزائر أكثر لنا من الشروح حول الدرجات النارية وبالتوفيق bro

[@rickguerrero2282]

A very nice video! Thanks for sharing your expertise.

[@MaxAlbiston]

Thank you for making this, very helpful!

[@Savage-lx5yj]

Excellent sir! Thanks for posting!

[@Lucky-tab]

Thank you for the posting,

[@user-uz8dh3bx4k]

Thank you for info. Sir..

[@candacelandwehr5417]

Thank you! The GY6 enricher automatic choke has always had current to it and is hot and drains the battery when not in use. Any ideas are appreciated?

[@golfish8589]

I have a 2003 yerf dog rover 8400 with gy6 engine and a dc cdi. When I turn the key. I get one single spark. I can't remember if this happens when turing the key to ignition on or when cranking. I eventually gave up on it and put in an ac stator, dci, rectifier and it runs. The ignition system i put in it was for a gokart or something and the wiring harness is incorrect and short and would like to switch back to the dc system . It has a mikuni carb That I have cleaned extensively a couple of times. The engine has no power or speed. The idle speed used to slowly increase the lower it was running. I would need to decrease the idle speed to shift from R N F. Will adjusting the idle air mixture screw affect top speed and power? My second thought is the diaphragm and needle that is attached to it. I did not see any holes in the diaphragm. I dont recall if the needle is adjustable. Any ideas would be helpful. There was one suggestion that a missing ground was the cause for one spark..

[@pukkap7657]

I have a new unrestricted naruka cdi box and i have a 2009 kymoc agility 49cc. My new cdi just keeps turning over when i try to start up the engine. Its all connected and the moped works fine with the old one. What am i doing wrong please do i need to bypass the ignition fro the engine

[@randyterrell2624]

I'm trying to find part for my yardsport200 2012 150cc I need a wiring harness?

[@babiidhaze]

Question, I have spark on my scooter but won’t turn on, when I keep pressing the ignition it sort of loses that cranking power. Can that be battery related? BTW I got a DC CDI

[@geoepi321975]

Hi what should be the input voltage on 2 pin of ac cdi

[@butterbean4195]

I cant find a 6 wire voltage regulator for my 200cc gy6. it has the smaller CDI (AC) on it. i got this kart as a crank no fire. customer says the shop put a new CDI on it and it ran find then one day died while running. just going over the kart it has been abused and the techs sucked that worked on it . its only 2 years old and missing stuff.. bottom line is i cant find a 6 wire 2 plug AC volt reg...anybody know whats going on with this thing? or where to get the part?

[@MrOlezhandr]

Question about DC CDI: Where is Battery connected (+12V on pin 5?)? Where is Crankshaft sensor connected?

[@JUNYABUNGZ]

So can i use a dc cdi on an ac motorcycle by changing the wiring setup?

[@eddietrujillo172]

I also wan to know too broh shit crazy cuz I have a 01 scooter that have a kill switch and it also have a stock cdibox which is big so I assume it's a cd but at the same time battery been dead I have be able to Kickstarter before and now I don't know what is the problem if tatir is new but it won't trow spark at all battery also dead too but usually it use to worl i dont know if its my charging systems are nit working or wtf else can be but whit a dead battery and no spark I have no wsy to find out if my cdi wen bad or the regulator ect

[@user-uz8dh3bx4k]

My motor 2004 Lifan 150cc endoro what is The DC AC CDI.. cuz 2.. one is to change 😢

[@piticutzouy8673]

Sall DC ..AC ... I have a 250 cc engine .. which CDI works .. thank you

[@JonahNAloha]

Gonna try and unplug my red and black wire that goes to my stator for dc cdi hookup. Hope this helps me.

[@eddietrujillo172]

Did it help u ?

[@eddietrujillo172]

I also have a Kymco DC cdi but change almost everything stator ignition coil and still got no spark I get a DC cdi and now if I get a 4t DC cdi it wouldn't work on a 2t dc cdia or im bugging ??

[@darrellsomers5427]

So on the #5 pen it gets a ground and 12 volt power through a switch ?

[@kylecrowder6940]

On the DC CDI, the cdi gets its power from the battery which goes through the switch. Pins 3&4 will go to ground.

[@darrellsomers5427]

So can I just use a toggle switch instead of a key switch ,and #4green can't really be a ground if the other side of the key switch is positive 12 volts off the battery am I getting this right and thank you very much

[@kylecrowder6940]

@@darrellsomers5427 I suppose you would need two toggle switches, one to turn on power to accessories and a second to go to the starter solenoid to start the engine. The ignition switch can do either of these depending on how far you turn the key.

[@darrellsomers5427]

Its an old Yamaha wave runner it has its own start button all ready I thought I would wire the positive wire from the battery through that button switch that has to be held up by the lanyard thing that kills it if you fall off the + wire with the #4 green wire through that switch

[@iancoe6201]

Vary well defined and detailed vary much appreciated my man. Now if the lord would so kindly teach caught caught show me the guide to how to please women now that they be something lol. But nah I'll definitely be showing this video to people instead of explaining it from now know 😂

[@MrOlezhandr]

DC CDI TATA: 1 - Hall sensor, 2 - Positive Ignition coil, 3 - GND, 4 - GND, 5 - +BATT 12VDC, 6 - No connection = does not working

[@mariajuhasz8845]

Kiraj