I have 1998 225 Ocean Runner that currently runs perfect. I disconnected the VRO and started premixing after I bought the boat last year. Someone told me the other day that I need to replace the fuel pump/VRO that is on the motor now and put a new pump on there that is just a fuel pump without the VRO. He said the one on there now will eventually lock up because it no longer has oil lubricating the VRO side of the pump. Is this correct or should I just leave it the way it is?