[DocCRF-X250]

I am picking up my jd jet kit this week and should be getting my crf fuel screw and my twin air power flo filter delivered as well. My question is what is the best way to go about changing my jets. Is taking the carb off bike the best way? Also is it ok to do all these changes at once or should I do one at a time in case bike doesn't run well after I will have better idea of what made it do whatever may happen?

[BigD]

You will be fine doing the all at once Doc. No need to take the carb off the bike, just loosen the boots on both sides, rotate the carb towards you and you will be in fine shape.
Search the threads, someone has posted pics of where the jets are located in the carb for reference, but it's fairly easy to see. The pilot can be a pain to get to, but the main jet is easy.
I had a heck of a time getting the o-ring on for the AP mod, but you can do it without taking off the carb.

Good luck, if you get in trouble just post again. There are some great guys on this site that can bail you out of anything........for the most part!!