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1972 from the "-72" part of the model number. It's a Johnson Seahorse.
50:1 is what I use
It is a 1957
i have a johnson seahorse outboard 20 hp motor model 20 ba serial number 26711 would like to know the year it is.
75 to 400 dollars depending on condition.
Your 1958 Johnson uses a 24 to 1 mixture.
The model 4BR75A, 4 hp Johnson outboard is a 1975 year model. The point setting on this engine would be .020in.
10R76R is a 1976 model, 9.9 hp Johnson outboard.
Johnson outboard model number J175EXARG, would be a 1994 year model.
A 50hp Johnson outboard, model TELCUD, is a 1987 year model.
The Johnson model CD25R, is a 6hp outboard, produced in 1968.
A Johnson outboard, model number J88MSLCUS, is a 1987 model, 90 hp outboard.