gr8flyer55

Hi Stew.
Seems like you are in need of a CDI upgrade for your system. Our CDI is probably adaptable to your system with some minor changes made to it. Ours requires a dedicated power supply that is regulated to 5 volts. Your supply needs to at least supply the initial voltage from the alternator since there was no mention of it having a battery. Filtering it thru a large capacitor to retain voltage for startup is a requirement unless you make up a power switching arrangement with a small battery somewhere in the setup. Ours takes a voltage constant for the timing chip to initialize and be stabilized befor it can produce the first spark. The issue of a magnetic pickup can be worked out. Ours uses a hall sensor and a South Pole magnet for the trigger.
Once you work out those few steps, you could probably use a system like ours.
Hope this helps. If not, I'm sure others can offer some suggestions to get your system figured out.

John