Dave -
Just bought a Goldberg Extra 300 that came with a fairly new YS 91.
My question is this.
I am not familiar with your engines yet and and am very confused as to how to route the fuel lines.
I have 3 lines coming out of the tank. 2 have 'Ts' since the plane has a cowling.
I would assume one is for refueling and one is a vent?
Do you have a manual that would show how the lines are routed? I am positive that the way they are setup right now is wrong. I can emial you a couple of pics if I could get your address.
At the front of the engine behind the prop adapter are 2 nipples on the top and one to the right slightly behind the 2.
Then, I have a nipple which I believe should be the inlet to the carb.
Can you tell me how to route these lines correctly?