A very annoying problem on the bike when it is set inside the tank has rust. Especially with very valuable vintage cars like a Harley Davidson is more than annoying to clog with rust in the tank to the carburetor. At the motorcycle is, therefore, the tank seal, especially at the Oldtimer very popular. But why is all the rust in the tank. See Wayne Holman for more details and insights. Even a full tank will rust much over the years. The fuel itself is enriched with various additives in order to fulfill certain properties. There is always water in the fuel, for example, contain naturally only in very small quantities.
The blasphemy be avoided but not, so a binder used. With the aging of the gasoline, the additives reduced and access to the metal. It’s almost normal that a tank is half full and was stored dry just below, in the area where the gasoline was strong is rusted. If the tank is sealed, and stored is not particularly dry, the rust also above, due to the humidity. Striking here is that apparently the new fuels are more aggressive than before 50.
After 2-3 years has been pretty rust set, but dry in old motorcycles, the 30 years the tank were often looks even better. There are specialists who make good money for the tank seal, but with the knowledge you can save the money. Before a good motorcycle tank sealer, the rust from the tank. A chemical rust removal, rust remover does not help, there must first be removed mechanically the rust in heavy rust. Detailed instructions are available on the Internet. Very popular and easy method with the mortar mixer. Grit and a little water in the tank and well wrapped in the mixing drum. rinse after 1 to 2 hours again and again with water and clean again in the mixing drum to the tank. Before sealing should bulge the tank, because after the seal may no longer be welded. If he can is clean and dry and be sealed. After the tank is for decades. Before sealing should bulge the tank, because after the seal may no longer be welded. If then he is clean and dry can be sealed. After the tank is protected for decades.