Just bought an ´05 KDX200 with low hours. The bike is clean and well cared for but seems to be jetted rich for this altitude (4 to 5 K feet, Salt Lake City). The bike starts easily and idles fine, but has low range power but no power midrange up. I haven´t owned a two stroke for 10 years, and am a bit rusty. Does anyone know the jets that should be in this bike at this altitude?