I got a question for some seasoned boat owners. My trim motor on a 50HP Johnson is looking too rusty, like water may get inside it soon. Any advice on what type spray paint / coating to put on it to get some more life out of it with use in saltwater? I attached a pic, hopefully it works. The rust is bad and scaley. I've had the boat for less than a year and cant find any exterior anodes on the outboard, so I'm gonna be sure to add those. Thanks very much in advance for any advice.