[RidgeRunner]

Roller bearings typically won't lock one up. Stuck rings is my guess. You will have a lot to do if water made it into the crankcase to say the least. I am in agreement with Smoke, you are motor shopping at this point. If you had the time to pickle the engine before layup you had a chance of saving her. Now, you still can, but lots of dirty work and effort. Last rebuild kit for my 90 Johnrude was around $900, including all the bearings new... Bearings are a little pricey. The crankshaft won't survive with much rust on journals, and there is no such thing as oversize bearings on the crank, so it could be junk as well. Polishing may fix it up but I wouldn't count on it. You need to go ahead and pull the front half of that motor apart. Remove carbs and reed plate so you can see what the crank and rods look like. That will be the determining factor. You may have gotten lucky and only one piston is stuck. Find out which one and beat the crap out of it with a hammer. Making sure she isn't all the way at the bottom of the stroke first ... On that motor, the piston could be removed and replaced without taking the motor 100% apart. Just watch for all the needle bearings when you start taking the rod caps off. They are not caged and will go everywhere. Don't use a magnet to pick them up if you plan to reuse. (I have always heard this but don't remember why) Picture or two, I want to see the carnage.