I just bought a 92kx500 and i rode it yesterday for the first time. I have to say I came away less than impressed.It has a new top end and crank bearings and seals so the motor is totally fresh. I know I couldn't rev it real hard cause it wasn't broken in yet but the mid range seemed really flat and blubbery.It has a pro-circuit pipe and silencer which I've heard is smoother than the FMF but I can't imagine a simple pipe swap making it anywhere near as hard-hitting as my old 86cr500 .I haven't had time to fuss with the jetting but the bike has good snap right off idle and into the lower midrange and then it just seems to load up and not pull as hard as it should.Any help would be appreciated as I really like the rest of the bike.