I have searched for a while now. I am working on my neighbors machine, he brought it to me and said it wouldn't go over 45. I measured the belt and it was out of spec so I pulled the clutches and cleaned it all up and got a new belt and put it back together. Then I realized it was being governed at 45mph with rpms at about 6k. The black key is being used and Is the only key that had ever been used so what would cause it to govern like that?