I need some help.When I'm in 3rd or 4th gear, doing 100+ and I throttle my bike...it seems as if the clutch is slipping (RPM's rise, but the bike doesn't gain acceleration).I checked it for slippage at low speed by going about 20mph, upshifting to 2nd or 3rd and throttling up, but it doesn't slip. Just bogs a little and slowly speeds up. The RPM doesn't rise or anything...unlike when I'm going fast. Anyone had this happen before? If so...please let me know what you did to fix this. Thanks in advance.