Thanks for the information. My confusion comes in where my bike has two wires in the two plug and three wires in the four plug which by that video would make it an AC fired CDI. But when I bought it, it was not running and had a bigger unit in it. That would make it a dc fired unit. One of the wires has 12 volts at the cdi. When I try to start I get .4 volts going to the cdi. I question this because of no spark. Everything has been changed and checked.