5000ft jetting for '01 cr 250

uhlanmc

Member
Aug 23, 2005
32
0
I am trying to dial in this bike for 5000ft. I have a 30 pilot, an s-7 nozzle, and a 400 main. I also have a 76 needle in the 2nd clip. I have found this works well in altitudes at 6400 and beyound. The bike ran great. The air screw was at 1 3/4. I am wondering if at 5000 ft, this set up will be too lean. If so, will simply changing the needle clip position and the air screw be enough? This CR ran so well with a gnarly pipe and turbine core silencer at elevation, I cannot see why anyone would swap to another carb and spend all that cash. Thanx.
 
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