What year do I have here?

[Dan8m]

I just bought this and was wondering the year. I paid 550. It would not run till I cleaned the carb, but now starts on first pull.here are the pics and numbers
M8 677 377794 I am not sure on last two numbers. I will check when I am home.

 

[haventaclue]

The number is coming up as 1982

 

[Dan8m]

Thank you.