Originally Posted by 2door
The OP hasn't responded yet but if they do the one thing to keep in mind is the outlet of the secondary fuel tank must be as high or higher than the inlet of the carburetor. These are gravity flow fuel systems, no fuel pumps and liquids only flow downhill.
Very True, and another thing I must point out is that both tanks need to be at about the same hight because one tank could fill the other and cause an overflow out the gas cap if both fuel valves were left open accidentally...
What I was thinking about if I wanted to run 2 tanks would be to use the frame mounted tank in front and then a rack mounted tank above the rear wheel, that would also keep them both pretty much level and above the carb's fuel inlet.