1992
Model number J25REDR, is a 1996, 25hp Johnson.
25hp 1972
Johnson commercial engine AJ25RPJ is a 1982 25HP.
1985
A=Australian J=Johnson 25=25HP RA=Rope Start Australia L=20 inch shaft CC=1988 A=N/A
Model number E25TELCSA, is a tiller electric start, 20" shaft, 1980 year model, 25hp Evinrude outboard.
Depending on the year ,it usually under the 3 bolt cover on cylinder head...
your Johnson is a 1985 year model
50:1
A 50hp Johnson outboard, model TELCUD, is a 1987 year model.
Johnson outboard model number J175EXARG, would be a 1994 year model.