Hi Guys, Just received my 04 WR450R. Installed the front wheel, handle bars and controls. Fired it up and it seems to be running very lean. The header pipe glows red and the bike overheats in about 5-minutes. Took the carb off and it has a 48 pilot and a 160 main. I adjusted the mixture screw to 1-1/2 - 1-3/4 turns and no difference. In fact I even took the screw out and the bike ran the same way. Can anyone offer any suggestions before I test Int'l Brokers' warranty?