Can someone please help me!? I just bought an 04 yfz 450. Starts and idles fine. It rides fine until about half throttle. When you get on it from 1/2 throttle and on the bike wants to cut out and bog out. I just took the carb apart today and we cleaned and put new Jets in it.i think it still needs bigger Jets. Pilot is stock because it idles and until half throttle does good. Main is a DJ165. Biggest dynojet sent me. Clip is in the middle. A/f screw 2 out. Can someone please help me with the jetting or have any ideas why this could be happening. Also my fuel screw I noticed came completely out while trying to ride it after installing. Also added build list of bike.