Hello all. I have looked in the RMZ250 forum and can't seem to find any info to help me. My son rides a 2012 that when we purchased it only had 9 hours on it. It has always been hard to start, especially when cold, and I can only get it to idle around 1100 rpm. I have checked the valves and they are good. I have tried to adjust the idle using the cold start knob, adjusting to 36 clicks out and still get low idle. I decided to try another throttle body thinking that this one may have been messed with as far as the throttle stop bolt, tps, etc, but once I swapped it out I am having the same issue. I have found many topics about low idle but none that have any fix listed other than adjusting the cold start knob/idle. Has anyone had this issue and was able to fix it? Maybe a fuel pressure issue? Or timing issue? Any help would be greatly appreciated!!!