Hello everyone,
So I'm new to this site and 1st time posting. I have a 2005 Kodiak 450 4x4, i have replaced all piston rings, carburetor , cam shaft w/ sprocket, chain, valve guide and valves (twice). Once it's in time and ready to ride I take it for a spin and not even 1 full minute in and it dies on me. It dropped a valve twice already, Can anyone spare some insight on as to why it does that? I have looked at many sites but I haven't seen anything on the why it does that, any information is greatly appreciated

 

I had that happen to me. And then I turned the fuel tank valve on.

 

Fuel was one prior to riding. So that's why I'm looking for some insight