" 45 HP Mercury only runs long enough for fuel in line to run out. I am leading to a bad automatic oiler? Any help. It will run great for 30 - 40 minutes, then if I have to switch tanks, I can not get it to re prime? It will not re-start. No matter how much I pump the ball, it will fire only long enough to use the fuel that has been primed. I have changed all lines, I have changed plugs. What about the oiler? "