Also lighten up the front end by taking the grips off of the handle bars and the throttle, who needs that stuff anyways! I know what will get you massive HP gains, put a super turbo chargamobber on that thing and its like BAM 100HP more right there!!
Quick story about this subject... Friend calls Advanced Auto and tells them they gave him the wrong muffler bearing. He told them he opened the box and it was a red bearing. He told them he specifically asked for the blue racing muffler bearing. The LADY at Advanced told him she was sorry and that she would go in the back to look for one!!! (wow, she was gonna be back there for a while, lol)