Hello, David! when i was seen your post, i answer to it fast, because your question is actual at the moment for many classic and antique motorcycles owners. I have a few motorcycles and one of these is called Pannonia T5 (1974) it was made in Hungary. I bought this bike in the very bad condition + little surprise, it hadn't a registration numbers and documents but! at the moment i restored it engine and suspension, But, how it is normally for this bike and for many classic bikes, it have a troubles with ignition by the old mechanism, i was thinking about it, to put on engine a electronic ignition, because when it bike was new, it not had a problems with ignition but time and rust and many time of working make a bad job to this bike.
If the new electro-ignition was not spoil the classic looks of bike, it is a good idea, i can help you, on the many russian forums was posted the many methods how to make a electronic ignition by yourself
I drove on this motorcycle through the streets in my town)) huh! police wasn't meet me
if you want to speak about something like this, or simply about motorcycles, answer to me on Skype: Axel_Sniper