I have 1984 evinrude 90hp vro. I have read a few post on here about removing the vro. I got this motor from my neighbor. it was also given to him. I dont know if it was working before or not. I pulled the oil hose and capped it off, but I have wires running into a circuit board looking thing on the vro unit. Do I need to disconnect any wires, or is it good to go? Thanks