Scrolled down so I am not sure what all I missed, but here is where I am at. I did in fact fry one CDI. I know because we have two quads. I also lost spark spontaneously, never to be seen again, and then boom there it was??? WTF%%##@#@# Then I could start it fine but it would die at half throttle. Then if you start it and then pull TPS off side of carb, it runs fine. Then if you put a YFZ TPS on rotatae it forward, start it , then rotate back and line the bolt hole up it runs great!! Except it won't start. Score at this point___ Quad 2, human 0. 2 KTM'S, and riding a
YFZ???WTF##@@@%$ CDI from adirtbike will work great, but there is no rev limiter in that one. I feel your pain man trust me!