bleed/recirculation lines

[speedinstream]

On a v6 merc the hose that goes from the bottom crank bearing to the top bearing how does it get its fuel or'' lube''. The mains pull from the reeds but it seems fuel goes though the bottom bearing first then to the top bearing where is that fuel coming from?Just trying to get in my head how everything gets oil.

[eli]

put on some tygon and watch the show,i start up my 260,s and watch fuel go thru the lines.must have something to do when the piston goes up or down sends pulse to that line,take one off when its running squirts good ,j