I have one of these engines and I agree with Tom, it is the best engine I have ran. This engine has been burried several times from bad crashes and it still runs incredibly. One plane I had it in called for an inverted installation. This made it harder to get the engine primed, but once primed it has always started with no problem. I have never used a starter on it, in fact I don't even flip it over to start. I just give the nose cone a quick spin backwards and it will pop over and run forward. It is a great engine and a powerhouse for its size and price.