I have a 1989, 110hp.Evinrude.The Vro pump and alarm are disabled. The engine runs great at at higher RPM'S but loads up bad at trolling speeds, seems to be running smooth but can smell gas after about fifteen min. of trolling, as soon as I throw the coals to her for a minute or two it clears up.I read a post at another part of this sight that said if my VRO pump was in poor shape I might need to rebuild it or replace it with a standard pump. Could this be the cause of my problem?? I use OMC outboard motor oil @ a 50:1 ratio.