Don't know motor year

[Max7]

I bought an 85hp Johnnson but Previous owner din't knew year,could u get me the year? Model# J85MLCSA serial#J5309418 4cld,I know this is an old motor,it is good if I use sinthetic oil? or just use the regular. thank U.

 

[ob]

Re: Don't know motor year

Max7, I believe your motor is a 1980 model.