I have 2002 xr650r with the factory installed HCR uncorked kit. I don't think the jetting is right for my altitude so... what do you suggest? My home start is at 4750 feet elevation and includes both slow and high speed riding. 90% of my riding is between 4750 and 6000 feet but...when the snow melts I can go as high as 10,000 feet. (This is a new bike with about 1100 miles on it.) Main jet? Pilot jet? Needle clip position? Thanks a bunch!