I have a 12 black tube that comes from the bottom of the carb. Can anyone tell me or show me where the other end goes. It is leaking gas

 

Sound's like the overflow or Carb drain line , if it's leaking the carb drain screw is loose or float is sticking ; or maybe dirt/trash in your carburator causing the problem ! If this is the case you'll have to pull the carb and give it a good cleaning , and install a clear fuel strainer between the gas tank and carburator ; this will catch water/dirt/trash from getting back in the carb ! I would remove the carb bowl and empty the gas into a glass container so you can see if there's anything in the fuel , and after you get this done drain the gas tank if you find any dirt/trash or water in the fuel ; if you find anthing remove the tank empty old gas and flush the tank ! And before you refill the tank with fresh fuel add some Seafoam to the gas tank then fill it up with fresh gas , Seafoam is a fuel cleaner/stabilizer that will keep your gas fresh ; this stuff will keep your entire fuel system clean and also clean's the combustion chamber of carbon deposit's ! You can get the seafoam at most auto parts stores , i get mine from O'Reillys for $5.99 + tax ; price may be more or less according to your location ; and you can get the fuel filter from any small engine repair shop or most auto parts stores ! Hope this help's you get it fixed A.S.A.P. ! williebee