I recently uncorked my 2001 xr650r by removing the airbox plugs, installed new carb insulator, and drilled out the stock silencer to 1-3/8". I installed a 68s pilot jet and a 172 main, set the stock needle clip at the 3rd position (I also tried the 4th). I am at about 200 ft. elevation. I tried to adjust the pilot screw to cure a hanging idle, and when I turn the screw in all the way, or out all the way, it has no effect on the idle. Do I have the idle set too low for the pilot to effect it or what?