I believe my fuel gauge is not very accurate. So I want to do a test. Basically, I am going to ride a full tank until it runs out to see the exact position of the fuel gauge needle and how many km's I've ridden. I know, the amount of km's is subjective to riding conditions, good to get 'close to running out' figure anyway. Before I go out and try my experiment, I would like to know how the reserve fuel works. My tank total is 15L, that includes a 3L reserve. Where is the reserve kept... in a separated portion at the bottom of the tank? When I run out of juice I'm thinking the fuel line and carby will also be empty. After I switch over to the 'res' position to utilise that portion of fuel... What do I need to do to put fuel back in the fuel line and carby?