insainair2

Ok,so at times i cant get any spark to the plugs. If i try and try, it will fire up after a bit, but runs a bit rough. I just rebuilt carbs. I disconnected the kill switch and it doest change. Also when i get it running the kill switch wont turn it off. I pulled the electrical box cover and found the #2,#3 wires off the cdi unit to the coils switched. Any idea of what else i can check while im in there.
Im a ase certified mechanic,so i got a good idea of most of this, just not sure of what else to check or how to test the cdi box.