I have a YS 63 That was running fine when i put the plane away a couple of months ago. I took the plane out and started the engine it seemed their was a air leak i changed the fuel tank with all the tubing. It starts fine for about 20 seconds but it seems like it is running out of gas. I see air in the fuel line it surges and then dies out. Help. Also what is a good start point on low and high end adjustment ?

Chris