So Someone else took out the oil bag on a 69 sportster I'm rebuilding. I could not determine from the manual which line goes to where. I know I have (And what I'm only assuming in brackets): 1) Feed (Underside of Bag "cant see in photos" and larger I.D.) 2) Vent ( Extreme top of tank, and small I.D.) 3) Return (Almost on top and larger I.D.) I have 3 lines going into the crankcase, but I have no idea which is which. Pictures are included. What I cant figure out is which goes where? Where may I find this info, or how can I determine it? Thanks!