I'm really havin a tough time gettin rid of this part throttle problem...any thing I've done changes the other areas of the carb circuits/RPM's but the part throttle thing still remains. Say I'm goin around a corner and I want to hold a steady RPM,it dosn't want to run nicely.I just give it a touch more and it rockets forward,give it less and it backs way down:cursin: those w/ the same bike...(98-02 ZX6R or 05-06 ZZR)...how are yours runnin? got the same problem? I've tried every combination of main jets,slide spring,mixture screws