Now we are getting somewhere. Because your first picture showed a white and yellow wire, it was assumed (at least by me,) that it was from your stator. When there is a pink and yellow from the stator, it has been my experience that this is a floating stator set-up for a full-wave rectifier system. Some other guys may chime in, but if that is the case, grounding the pink to the frame will power the yellow wire. If you want to test it, there should be continuity between the yellow and pink, and no continuity between either of them and ground. If they test out, I would ground the pink and see what voltage you get.I have no white wire on my stator. I have green, black w/ red stripe, blue white stripe, yellow, pink, green w/red stripe.
Not using the pink not sure what's it's for or the green with red. Believe that's a neutral indicator. I do not have the green from the rectifier hooked to the stator. I was told be sell tape it off along with the red one from the rectifier.