Floats don't just bend themselves way out of adjustment. Almost every time I see this it is dirt in the needle and seat. Clean or replace the needle and seat in the carb and all should be well. If someone did bend the float out of adjustment, you can bend it back into place. You can eyeball it to make the float arms parallel with the bottom of the carb, but it is better to get a manual, look up the correct float height and measure it when adjusting.
If you just go in there and start bending the float without any reference, you can damage you engine by making it too lean. and if it is your needle and seat, all the bending in the world won't stop the overflow.
A properly adjuster and cleaned carb won't "pee" any fuel unless you lean the bike on its side.