I just want to say that i am in no way trying to get this covered under any warranty at all. The failure is 100% on me also that i would buy another dle-20 today and i will fix this one and keep flying it i really enjoy the little motor. Also there are probably a lot of other things that contributed to the failure it has had a prop strike or two in its life and i was never exactly gentle to it. I wanted to see what it what capable of and it has actually exceeded my expectations. Besides the fact that the crank pin broke the internals looked great almost no carbon build up and very little wear in general i plan to re-use the cylinder, piston, ring and maybe the rod. Overall this is a great motor and i would still recommend this engine to anyone. Engines fail it happens and is not limited to one brand (I own a DA-60) and i know DA-50 have failed before, its just part of it.