Usually a stuck float mechanism.
1. drive it until you are out of fuel. it will quit leaking. 2. rebuild the carburetor. 3. replace the carburetor 4. identify the reason that it is leaking and then ask another question.
It depends on why it is leaking.
Your pocket rocket is leaking gas because your fuel line is not switched off or you need to clean your carburetor you might need a new one.
The float is probably stuck open.
You can stop a leaking gas tank, by making a paste of soap on the hole of the gas tank.
how do i fix leaking spray pump on a 2 barrel carburetor
Carburetor needle valve probably leaking while engine is not running causing gas to run down the cylinders into the crankcase.
Replace the line that is leaking, and do not try any stop leak.
why can I not stop the leaking of gas from the carburater on a 1994 harley
The float could be stuck open in the carburetor, causing the leak. The carburetor leak needs to be fixed, this could be all of the problems, it also causes a fire hazard.
Busted diaphragm in the fuel pump. Replace the fuel pump to solve this problem. Can also be a carburetor problem such as a leaking needle valve and seat or a pinhole in the carburetor float. This would require disassembly and rebuilding the carburetor.