i have a 2000 kdx 200 with fmf pipe, silencer, modded airbox, carbon reed valvess and rrace tech suspension. I cleaned out my kips and found that the valve to close off the cyclinder was stuck wide open. I was wondering why i got horrible torque. There was so much gunk it there. i just used some wd40 and brake cleaner and got almost all of it out.
