Well, to tell the truth, I know red is positive and green is ground using common sense. There is no markings on the new rectifier to tell you where the pink and yellow wire hook up. I guess that's why I'm on this forum asking you professionals. I'm not good with electrical and never have been. As far as the electrical connections on the bike, I have thoroughly gone over them and checked them. I did start looking around for a diagram that shows connection of the rectifier and found one. I will check that tomorrow and see if i have it right.