I never understood how the copper floats pitted and "rusted" through. I would NOT suggest soldering the current float...for three reasons; 1. It's currently filled with gasoline, and a hot iron and gas just don't get along. 2. The weight of the solder could impact the float floating, closing off the valve. 3. Replacement floats are dirt cheap.
I would also suggest, since you have the bowl open....and the engine must be a little old considering the float is shot.....to replace the needle as well. It's been a while since I've done this repair, but they use to sell a kit including the float and needle.
I would also suggest, since you have the bowl open....and the engine must be a little old considering the float is shot.....to replace the needle as well. It's been a while since I've done this repair, but they use to sell a kit including the float and needle.