We need to know aprox how old it is to give you a decent answer.
Up to aprox a year of inactivity, you can get away with siphoning out as much fuel as you can then replacing with fresh fuel, fuel filterand adding an additive.
Two years or more of inactivityit would be best to drop the tank and flush it out.
After ten years of inactivitydrop the tank, inspect it along with the fuel lines and the neoprene hose connections, you may consider replacing the tank with a new one.
No but make sure the gas tank is clean and free from debris, if there is dirt or debris then clean the tank with fresh gas or you can use diesel fuel either way make sure its clean.
U NEED TO REMOVE THE GAS TANK. CLEAN OUT THE RUST. PUT IN A GAS TANK SEALER. REINSTAL TANK ON CAR.
Go to Eastwood.com and look up gas tank reliner kits. Don't use cola or any other substance that is not specifically for fuel tanks.
Drain and clean the tank. Replace fuel filter.
A few ounces? Treat it with dry gas. More than a few ounces? Drop the tank and clean it out.
the tank needs to be removed. There are various kits that can clean the rust and scale from the tank. Some people use cleaned marbles or pebbles and shake them inside the tank as well to beat even more scale out. The tank needs to be chemically sealed to stop the rust and keep what's left from mixing in with the fuel.
clean out the inside of your rusty gas tank!
take off the gas tank and then find a small chain, put the chain inside the gas tank add some gas and shake it for about 2 minutes, drain the gas and repeat if gas was orange or until u get it clean.
Muriatic Acid is used to clean the fuel tank of an MC when the gas is so old that it has turned to tar. This can be purchased at home improvement stores. Automotive repair stores also sell this type of acid in a kit for flushing the fuel tank.
Bad gas (old gas) cold plugs. Need to install hotter firing plugs drain tank and clean use only high test gas.
You don't, You replace it.
clean tank and carbs