[THEFERMANATOR]

The primer system on the OMC's requires you to pump the primer bulb up hard before you go to cold start it. The primer system uses the fuel pressure from the fuel pump to inject fuel behind the carbs, so if the fuel bowls are n't filled it will have to fill them before it can get enough pressure to push fuel through the primer system. Just be careful as alot of inline pumps require quite a bit of vacuum to pull fuel through them, and the V-4 doesn't have a fuel restriction sensor to tell you if there is to much restriction to the pump which can lead to a lean out situation. The extra fuel pump before the VRO pump will not lead to extra pressure as the VRO pump works off of the pressure going out of the pump. And I doubt you are, but your VRO will not work with the electric inline pump so you will have to premix.