The pictures I posted are on a 77 hobbit cdi. Where you are getting confused is that to harness the output of both coils in DC they need to be counter wound to each other, one clockwise and the other ccw. They also need to be one strand of wire wound to both of them. Then both ends are floated to the reg/rec. The way it comes out of the box they are two separate coils, each sharing the common ground of the stator plate. There is no ground wire. That is a small winding inside one coil and it does put out a small amount of power but it's basically useless.
Temporarily I did manage to rig the two coils with two rectifiers and powered my lights in parallel. I didn't get 100% output but it did work. I had to float the ground of each coil and connected the rectified output of each together. I only ran this way for a few weeks and then rewound the whole thing.