I have several repairs to make to a 1981 Johnson 115 V4 and want to get it off of my engine lift. I need to replace the water pump and also have a trim motor that will only go up (bad relay, solenoid?) not sure yet. I have just finished a 4 month resto on a 16' fish and ski and am ready to hang the O/B back on. Is there any reason why I couldn't, with these repairs yet to be done? I had to drain the hyd fluid to get the engine down when I took it off and want to make sure I can refill the reservoir once mounted. Also, if you could describe the location of the trim/tilt reservoir fill, I would appreciate it