OK, we'll get you there!...in your first pic, #2 vents to atmosphere, it connects to nothing.
in your 2nd pic, #3 connects to #1 from your first pic.
my first pic (of my People S200, which looks very similar to yours) shows the line from the fuel tank, 2nd pic shows where this line connect to.
On my scoot the line in your first pic goes from the fuel tank forward along the right side of the scoot frame (as you're sitting on it) and connects to your 2nd pic, #3, at the front right of the motor, closer to where the spark plug is.
the 2 lines that come off this - first one circled in yellow, goes to the a Y which connects to the intake manifold. The 2nd line, circled in red, goes under my floor board to one of those emission canisters.
kind of confusing..but hope this helps get you started.