Well the diagram is definitely confusing. It looks like three different voltage sources, but it's actually only two. The rightmost "G" is showing the single winding that powers the CDI and also shows the ignition trigger. The center "G" is showing the lighting coils. Both of the "G"s represent the Kokusan 2K3 stator. Wire 31 is the AC ouput that the regulator "REG" clips to maintain a reasonable AC voltage. The wire at location 23 is what you would feed to a rectifier to create DC voltage for battery charging. Wire 56 at location 31 on the righthand "G" is actually the same point as wire 31 on the lefthand "G".