I just cleaned the carbs on my 02 mxz500 and when I started it back up it reved right out. Im thinking air leak, or, no oil due to a air lock in the oil pump. I also changed the oil tank and filter, and i dont know if I need to purge the lines or prime the pump or anything????? with the carbs, I have flat slides, I re-set the pilot screw, slide height and checked the needles, everything looks good. I also had the reeds out, and the cage did not stay attatched to the boot. Is this normal? do I need any sealant or anything on the mating surfaces? Please help!!