I have an 03 YZ450F. When cold the bike starts like a champ with 1-2 kicks. The problem starts when the bike is hot and I try to start it (especially after I inadvertantly kill it). It feels like there is little to no compression and only after multiple attempts to start from TDC will it start. I tore it apart this evening and the valves all appear to be in spec. I manually open the decompressor and it feels like it sticks ever so slightly before it closes. For the most part it moves freely but do you think this could be the problem? Any help would be appreciated.