You said you added one of these little electro-ignitions to your Whizzer... I just got mine in the mail today from Northern Tool. There are instructions, but they imply that it's not crucial _where_ the module is screwed down. So if it can go anywhere, how does it know when to create spark (i.e. break)? And how can timing me adjusted?
Here are my guesses to those questions:
1) It senses piston position by sensing the capacitance seen thru the sparkplug, and fires just before that capacitance becomes minimum value;
2) Timing can't be adjusted at all.