[Allan]

The 3/4" fuel line is all that I attached (not the reserve or breather line).

There is no reserve line,,that is a vacuum line, you need a hose on it that runs to the right side carb(right if you are sitting on the bike). There should be a port on the inboard side of the carb near where it hooks to the intake(engine side).



vacuum hose diagram.





BTW,,it is a petcock,,I think it is short for petrol cock,,sounds like a Brit thing to me,,basically it is a gas valve.