I am going to change out vro pump in a 1989 40 hp evinrude outboard. What all do I have to dismantel to access the vro pump and hook up the conventional pump. I see the port on the side of motor to mount new pump but was just wondering how to get to the vro pump to disconnect. Do I have to take off lower cowling. Also how do i pipe gas line from new pump to carbs. Somebody told me that you had to turn the little spitter tee upside down. Is this correct. A detailed hookup would be greatly appreciated.