1990
1971
You would need to give us the model number to tell the year - the serial number makes no difference. The model number is usually on the clamp bracket somewhere.
1982
1967 - the first two numbers indicate the model year.
E15RLCIS, is a 1981 year model, 15 hp Evinrude outboard.
The 4 hp Evinrude, model 4904D, was manufactured in 1979.
1982 Regards
The letters in the model number designate the year model, when compared to a model / year guide.
The year is 1992 -the "en" in the model number identifies the year.
Johnson outboard model number J175EXARG, would be a 1994 year model.
A 4 hp Johnson outboard, model number J4REIA, is a 1991 year model.