My KDX starts perfectly when it is cold, half a kick and I am ready to roll. But once it warms up get ready for a fight, atleast a dozen kicks and just a little gas. I have done the air box mod, FMF gnarly pipe with shorty silencer, and stock reeds. The jetting is 142 main with a 45 pilot and the needle in the next to top clip at about 500 feet above sea level. I have checked the compression and it is 2 PSI under the manufactures maxium specs. Does anyone have any ideas what this might be and how to correct it?