I have a 1989 70hp Johnson outboard. The engine runs fine as long as I keep pumping the fuel bulb on the gas line. If I don?t pump, the engine stalls out within 5 minutes. I was told it the VRO pump. I got a quote on a new VRO pump kit?it?s a bit expensive. I was thinking of going with non-VRO pump. DOES ANYONE HAVE ANY SUGGESTIONS??