Diminishing output from CDI - 30 Volts to 2 Volts

[FlyingBlindOnARocket]

Hi
I'm having an odd problem with my 50cc GY6 that maybe someone here can help find the solution to.
It's a no-spark situation, and here's what's going on - The stator is working normally, putting out it's 80 volts. The CDI is receiving the 80, but starts by sending 30 volts to the ignition coil, and that quickly drops to 2 volts over the course of a few seconds.
The CDI is new and another new CDI was tried with identical results.
The ignition coil is also new.
The CDI has good ground, an additional ground wire has been spliced in just to be sure.
Everything else on the bike is working normally. Lights, turns signals, horn, etc.
The trigger coil is also new and working.

I'd really like to get this bike back on the road ASAP, so any help is appreciated.