[bret a ewing]

Had a similar problem. Alignment of 5th/rev not quite smooth. Tried to catch rev. in a panic (on the grid waiting to enter track and the car in front of me stalled) and broke the 5th/rev internal linkage rod. It is made from white metal and in my opinion not as strong as it should be. The new 600rr was torn apart and adjusted properly BEFORE I installed it.