Plowboy,
It was nothing to do with the engine just the lack of a glow plug that caused the flame out. Evidently it came loose during my final construction and I failed to retighten it after tuning the engine and it made it ok though the first flight and vacated during the second. It is the first time that has ever happened to me but it is the only thing I can think that caused it as I was taking the post mortum look at the engine and found the glow plug missing. The EF yak is still in the box. It will probably be a winter project. I have both that and a Ultra RC Katana to put together over the winter.
I am interested in what you think of the EastRC yak. Let us know.
Jeff