Need help finding the year for my Mariner 9.9M 682cs048214

[robgray]

Just bought this engine and I can't seem to find out the year. Thank you

 

[johnnygjr]

That isnot the serial #

 

[robgray]

Is this my serial #?

 

[haventaclue]

That is an '83 Yamaha built Mariner.Yamaha in all but name

 

[robgray]

Thank you haventaclue