Your posts are somewhat confusing..
If your referring to the TWO SMALL lines attached to the bottom of the tank(both sides)
they go down, to the right side of the bike, just behind the rt foot peg. There should be a steel
loop they go thru..
Nothing from the fuel tank goes to the coolant over flow tank,
two completely different systems.
Now, the main, only one, larger fuel line, that of course goes between the fuel pump
(bottom of the tank) and the fuel rail..
Is that what your referring to?
.