Answer by  
                                                                                          jon40 (440)
                                                            
                          
                          
                                                          First make sure if there are any restrictors in your model or throttle stop screws and remove and adjust. Different clutch sheaves help the most with going faster. You could also add an exhaust, intake, and possibly a high performance cdi/ecm. But, like I said your best bet is to get aftermarket clutch sheaves and a new bike.