I just purchased a boat with a 1999 40 HP Johnson outboard, model #J40PLEEA. I know there are varying opinions on this, but I am contemplating removing the VRO pump, at the same time as rebuilding the carbs. Images of the replacement pump seems to have three nipples; in, out, and pulse? I thought that the pulse came from the back side of the pump where it is mounted. I guess my question is, are there two pulse connections? Thanks in advance, Dave