The year model for Johnson and Evinrude outboards is determined by the "model" number, rather than the serial number.
1985
Johnson outboards, model RDS-24L, would be a 1962 year model, 40 hp. the boat motor is a 50 hp.
1963
1969
1980
1986
Model number J150OLEVR is a 1997, 150hp Johnson outboard.
That in for a 1984 Johnson 70 hp outboard engine.
1972.
CD 24 is a 1967 model.
The Johnson boat motor model 1156936 was produced in 1983. This model is part of the Johnson outboard engine lineup, which was known for its reliability and performance during that era. If you need more specific information regarding its specifications or features, I can help with that as well.
1965 18 hp