Motorcycle Repair: yamaha fzr250rr, factory specs, exhaust valves

Question
How can i regulate valve on my motocycle Yamaha fzr 250rr  

Answer
Uri,
 I'm not sure what you mean.  Are you refering to the intake and exhaust valves?  The rocker clearance must be set to factory specs.  Other than that the is nothing more to do.  I mostly concentrate on 2-strokes, still I'm not sure what you mean.

Mike