put new trim motor on with the whole unit off the boat. tested before putting back on. When i put it back on the boat it keeps blowing fuses going in the up position and it isnt hooked to motor. What the heck? took off again same thing works great on bench but not on boat. I may not have the proper amout of oil in unit so it works on its side on the bench but not in the upright position on the boat, does that make any sense?