I am racing MX on my shee and Saturday 3 times the thing died on me on the track during the first Moto. The second Moto it ran fine. Then Sunday I started it and it ran just like it normally does when I start it cold it took it a second to warm up and then as I was trying to rev it, it would not rev very high and then it died. Won't start now. Any ideas? I pulled the K&N 2 into 1 air filter off and tried again. I pulled the plugs and dried them off and tried again. Still not starting. WTF?