I'm looking to by-pass the VRO pump on my engine so I can run pre-mix fuel. I had a 87 150 VRO that was by-passed. It was fine. I just put the 175 on my boat and noticed the pump was broke and I'm trying to figure out how to eliminate the pump. Does anyone know what and how to do this? Also re-hooking the choke. Has anyone come across this?