A Johnson outboard, model number J88MSLCUS, is a 1987 model, 90 hp outboard.
Johnson outboard model number J175EXARG, would be a 1994 year model.
A 4 hp Johnson outboard, model number J4REIA, is a 1991 year model.
Johnson outboard model number VJ90TLATS, is a 1993 model, 90 hp.
Johnson model number J70ELCSA, is a 1980 year model, 70 hp outboard.
A Johnson outboard engine, model number RDE19M, would be a 1957 year model, 35 hp outboard.
The Johnson model CD25R, is a 6hp outboard, produced in 1968.
Johnson outboard model number LD-12, is a 1967 model, 5 hp engine.
A Johnson outboard, model number J35BALCSM, would be a 1980 model, 35 hp engine.
A 200 hp Johnson outboard, model number J200STLCDR is a 1986 year model.
A Johnson outboard, model number CD24D is a 1967 model, 6 hp engine.
The year model for a Johnson outboard is determined by the "model" number, rather than the serial number.