Lately I have been experiencing my auto-decomp device sticking occasionally so that when I go to kick the bike over it just cycles through without ever building compression or allowing me to find TDC. At least that is what I am assuming is happening as I have not torn it down yet. Anybody else experience this? I have about 350 hours on the bike (I have an hour meter but have not looked at it recently). I have about 50 hours on a top end rebuild and the valves were in spec at that time but I have not checked them since. Once I can finally get to the compression stroke it fires right up hot or cold. It does not happen every time...probably about 30% of the time I try to start it. I run Amsoil MCF exclusively and change it every 8-10 hours. Is there a fix for this or is it just time to replace the exhaust cam?