Positive news! The Helicoils worked flawlessly. gas tank holds gas without leaking a drop.
now with every good there's a bad. When I finally hooked everything back up and flipped the petcocks over, no fuel is making it down left carb, and then the right carb fills then just POURSSS out the bottom overflow. We got the bike to kick over and idle for a few moments before dying out.(I assume because there's no fuel in one carb and is flowing straight out the other, although I did put some fuel line on it and push it up so what fuel does pour out it goes back up and stops when it reaches about where the floats stop in the carb,) it reached a point where it only flows fuel when on reserve so to save wasting more gas I haven't tried anything else.