I'm not sure where the "Y" came from, but I'd suggest it is likely a 3 cylinder 70HP Mercury with triple carbs. Year of manufacture 1987.<br /><br />Serial Number: 0B182025 Model Number: 1070727<br /><br />It should look like this:<br /><br />
Thats pretty close,,,,,But mine is hanging on the back of a boat. <br /><br />Thanks AMD....I got it from my stepdad and never really gave year model alot of thought, just use the he!! out of it and am in need of a prop.<br /><br />