i hav.e a 91 4.3 omc with a prestolite electronic ignition . boat would not start or start sporadicaly. finally found out esa is bad disconected it and it starts every time now . it had a bad short in it cooked my control module and my coil . anyway can i operate the boat with it unhooked . it is a shift assist but will it hurt the gears i need to use the boat this weekend and i have no time to replace now . thanks in advance