electrical problem on a new-to-me vulcan 750
hello gents, new here and could use your help. just bought a 86 vulcan 750 that has a charging problem. doesnt seem to want to charge the battery when she is running, but runs good. i checked my grounds, cleaned them up. the PO says he has already changed the stator and the rectafier, and still couldnt figure out what was wrong with it. i believe i have found the problem, found a collection of wires that were just wrapped in electrical tape that i believe use to go to some sort of rectifier or something along the likes. attached is the photo of the wires that i have found, and any help as to what they are suppose to be hooked to and where to find said part would be awesome.
PS: there are actually two groups of wires in the photo that i need help with. the group of 6 on the right, and the group of 3 yellow ones on the left. are the yellows from each side suppose to be attached to each other? if so, is there any special order to them, or do i just hooked them up?