I am working on my buddies kids Puma. He was riding and it started to run poor...shut it off and it wouldn't restart. No spark on either. Thinking 3 possibilities outside of a worn wire or shorted switch. Bad coil, bad CDI or Stator. Can anyone tell me what the resistance is supposed to be on the coil? What's a good way to check CDI? Which output from the stator is for the coil? The lights work fine on this thing. Thanks!