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im new to the bikes and i just got a 2004 crf230f and am wanting to do some mods to it. it already has a aftermarket filter and unbaffled exhuast with a different main jet. i got a t-4 exhuast for it with a rev box. i bought a couple different jets consisting of 132 main, 135 main, and a 45 pilot so i can tune it. i ride at elevations from 800ft up to 3300 ft. what jets will work best in my bike? right now it kinda almost bogs down up at about 3300.

thanks!

paul

Have a look through here first.

If you have opened up the exhaust and inlet you should really jet the bike before any riding.