Mine came jetted very rich! It had a 175 main and a 58 pilot and a friggin #6 slide which was the main problem which for my elevation was way to rich. They told me they jet the bikes very conservatively.
I used the "Team Green" jetting chart which uses a 168 main, 55 pilot, #7 slide and an N82M needle in the middle. After the jetting changes she ran sweet!
Also if you want to get rid of that cotter pin on the axle nut a CRF450 axle nut fit mine.
Nice machine and good luck on that thing!