electrical problems

Hi everyone. I built my first gas bike and joined the site about 3 months ago - minimal problems so far, and people here have been very helpful. Not really looking for help this time since I solved the problem myself and was able to cannibalize a working coil off one of my roommate's spare...

I upgraded my CDI to a Jaguar CDI, and it smoothed out the vibration quite a bit as well as providing better performance. The problem that I am having is that since putting it in I am not able to use my spedometer (neither wired or wireless) when the engine is running as it throws the spedo...