Great video, my 2007 CRF230F came from California and it did not have an idle screw to adjust or replace (as your video indicates). I did replace the main jet and another jet, both were in desperate need of cleaning/replacing. I replaced them with the new ones that came in the carb rebuild kit to avoid reinstalling jets that were not cleaned enough. Thanks for this handy how-to video.
Wow thank you so much!! This is the best thorough video. This has helped Me so much. Thank you. Also thank you for the quality of video where you’re allowing the close-up not to be blurred. Awesome job