So I installed what is essentially the treats Puch CDI adventure pack v2.
Strong spark, bike runs great UNLESS I actually run the lighting coil.
As soon as I connect the lighting coil to the regulator I can only rev about 1/4th turn on the throttle before it starts losing power and coughing. It doesn't make sense to me as the lighting coil is completely independent of the power coil. We measured the output from the lighting coil and were getting readings of 30V+, and when hooked up to the regulator we were still getting readings of 20V+.
Of course this completely destroys 12V bulbs, but that really doesn't even matter while the lighting coil is somehow affecting the power.
We grounded everything to completely separate grounding points, tried two different regulators, checked the stator plate for any exposed wires arcing or weird wiring setups and found nothing. Used a junction box, connected wires directly, disconnected lights completely. Still no luck.
As long as i've got just the cdi to stator connected, the bike runs as it should. I just can't commute with no lights. Any ideas?