my bike is a 2004 cbr 1000rr and the problem is that my bike wont shift to 4th 5th or 6th gear its fine from 1st 2nd and 3rd but just wont go past 3rd ....when trying to go to 4th the shifter will make a click feeling like its trying to shift but just wont go itno 4th or beyond that ....but today i was messing with it and also noticed that going from 1st to 2nd that it would fall back to neutral ..........i played with the linkage some i have a sato II on it ... and with it off and rocking it i got it to 6th gear but it was hard and then i dropped it back down to first ...wont go above 3 again now............and help would be great thanks in advance