...alright, I don't know much about boats here, I'm trying to sell my 24' pontoon boat, it has a 70 Mercury outboard motor on it, and it is an '83. I haven't used it much the past two years, but I do start it up once in a while. It always fires right up with no problem. I have been having a problem with the trim, I couldn't get it to go back down. So I made sure it had hydrolic fluid, I filled it up. On the pump, there was a screw that I took off, and it had hydrolic fluid on it, so I thought maybe that was where I was supposed to fill it up at. I later found out that the two cylinders on the sides of the motor was where it was supposed to go. I found out that there was a cable loose and that's why the trim wouldn't go down because when I wiggled it, it went right down. I started it up after I fixed the trim, it started up right away like usual, but it was smoking a lot. I was letting it warm up, but then it died on me, and it won't start back up. I also notice a good amount of fuel leaking into the water...what do you think could be wrong with her???