G'day guys, Iv'e got a 2005 CRF250R that iv'e just purchased. It was fine for the first week or 2 when i had it, it started first or second kick now it doesn't want to cold kick over at all, although it push starts fine. Iv'e checked the valve clearances they are all within specs and iv'e just had the Carby professional cleaned out and re-assembled, Changed the fuel yet it's hard to start still. Sometimes it starts for about a second or 2 then shuts off again. Where should i look next? Change the plug? Cheers guys, Deneo.