I have a 1968 Evinrude 40, Lark ll. Just bought it, and the boat it's mounted on. I have two problems. First, I can't find the model # or serial # anywhere. Several E-how suggestions said it should be a plate on port side, on mounting bracket. I find no plate anywhere, or any signs that there ever was a plate. Any other suggestions? Problem # 2: I uncovered the boat, started working on it to bring it up to snuff (whatever snuff is) and lowered the motor while searching for the ID plate. It's manual, no power trim. So I pulled the knurled pin out and the motor released and lowered nicely. The pin seemed a bit hard to pull out, so while the motor was still in the down position, I pushed the pin in and out a few times to see if perhaps I should lube it with some WD or spray grease. It seemed to be sliding in and out ok, so I didn't lube it. But later, I went to raise the motor back up before re-covering the boat for the night with tarps, and the motor won't raise. I tugged on the pin, I even got a pair of pliers and really yanked on it, but the motor won't go back up. The release pin seems to be pulling all the way out, it even makes a click when it hits it's stop. But it acts like the pin won't disengage the motor. I can't trailer it around like that, the motor is only about 3 1/2 to 4 inches off the pavement. With frost heaves and pot holes everywhere, (Spring in the northeast), I'd trash the motor or transom, for sure. What to do? Keep it simple, please. I know nothing about outboards. I have a lot to learn, ASAP.