Hi, and welcome to TGMF.
Not 100% familiar with that model, but I think you should have three pipes coming from the tank,
One is fuel supply to carb, that the long one that goes from the carb, and all the way inside the tank and has a fuel filter on the end.
Another short one that has the tank breather on the end outside of the tank, the other end pokes just inside the tank.
And another short pipe which goes from the carb to just inside the tank like the breather one, and returns fuel to the tank when you prime the carb via the primer button.
1: Fuel feed pipe.
3: Return pipe.
If you have any pictures of the carb etc, you can attach them to a reply here, that would be helpful.