Re: Did we ever figure out the leaky gas cap solution?
I would say look for a new gas cap. That just ain't right.
I would first make a gasket from an inner tube. Those work in plastic bottle that I carry gas in. What you want to seal is just the lip of the tank to the cap. The center venting should not allow more than a drop of gas to leak.
My posts have entertainment value only. A bike ain't yours till it has your blood on it. Then it owns you.