If I recall, it was called wasted spark. Many bikes use the method, including my GS550.
Don't put a 12v battery in a 6v rig. You're asking for trouble, and you'll damage your electrical system. Instead, look for a company called Dyna or Dynatech, they make conversion kits from points to CDI. Sorry, you'll have to google it, or type "dyna cm200" or "dyna honda" in the search bar on EBay. The conversion kit for my 79 GS550 ran $130 plus shipping. Good luck.
Don't put a 12v battery in a 6v rig. You're asking for trouble, and you'll damage your electrical system. Instead, look for a company called Dyna or Dynatech, they make conversion kits from points to CDI. Sorry, you'll have to google it, or type "dyna cm200" or "dyna honda" in the search bar on EBay. The conversion kit for my 79 GS550 ran $130 plus shipping. Good luck.