I think thats the vent and should be pointing down with a hose on it. But I could be mistaken.
I wonder what the consequences (or symptoms) of NOT having a hose attached would be?
+1 on that will run fine with out a hose on it just not real safe if the niddle and seat dont seal gas will come out of the vent.You guys are right, its the vent. Just runs down and out below the frame in case of any carry over of fuel (won't end up all over your engine which could be hot).