I am rebuilding a 75 Primavera (1981) from Spain (or trying too) and then I encountered some thingies I don't understand. I have rebuild one scooter with batterie and CDI's so this is very new for me! (first vespa, first post )
My knowledge ends here. Its a Femsa Ignition, Femsa resistance and a Femsa Bobine. There is a white, green, black and yellow wire. My questions are:
* What colour is what?;
* Can I check if the ignition still works although the engine is loose of the frame? (got it in pieces)
* Do I need to upgrade? I don't want to buy a new 12v system because I want to use as much old stuff as I can!
Hope you guys can help me!