Built in 1982 according to several website. My sea-horse serial number is only about 100 serial numbers from yours... in the same batch.
1972 from the "-72" part of the model number. It's a Johnson Seahorse.
48lbs 27.1kg
32:1
59 pounds
I have a 6 hp Johnson seahorse outboard and I was told to run it at 40:1 and have done so for ages and runs fine.
50:1 is what I use
It is a 1957
75 to 400 dollars depending on condition.
I found mine on the upper part of the shaft, on the left side.
i have a johnson seahorse outboard 20 hp motor model 20 ba serial number 26711 would like to know the year it is.
Your 1958 Johnson uses a 24 to 1 mixture.
It depends what year. The older ones use 24:1.