mods for stock crf carb help

[bikebuilder]

i seen it in here before about a few things you can do to a stock crf450r carb to give it a little more power and better throttle resp please help

[extremetrucker]

check out the crf section in thumpertalk forums and search for the AP mod, lots of good readin there

[audioworks04]

Best mod in my opinion is NCVQ needle and a R&D flex f/a screw along with the R&D power bowl or power pump 2 or merge racing makes an adjustable leakjet also. I run the power pump 2 and it made a huge difference in the off idle bog. The ap mod will help some, but kind of just a band-aid fix for the problem, I tried it and was less than satisfied with the results.