I just bought a 14ft. aluminum vee-bottom, with a trailer and 9.9hp Johnson Seahorse for $500. I got the motor in a barrel today, and it started on the first pull. It runs like a champ, but I can't figure out how old it is. We don't have to title any motor under 10hp in OK, so the only thing I have is the model number. 10R74S.

Call a dealer or the factory and have them run the serial number.

I just bought a 14ft. aluminum vee-bottom, with a trailer and 9.9hp Johnson Seahorse for $500. I got the motor in a barrel today, and it started on the first pull. It runs like a champ, but I can't figure out how old it is. We don't have to title any motor under 10hp in OK, so the only thing I have is the model number. 10R74S.

   

Best guess 1974

I just bought a 14ft. aluminum vee-bottom, with a trailer and 9.9hp Johnson Seahorse for $500. I got the motor in a barrel today, and it started on the first pull. It runs like a champ, but I can't figure out how old it is. We don't have to title any motor under 10hp in OK, so the only thing I have is the model number. 10R74S.

Best guess 1974

Mine as well, since it is a johnson I believe they usually put the year it was made in the serial number. That's how mine is.

You can also take that serial number and put into google and it should pull up some info just to verify.

I just bought a 14ft. aluminum vee-bottom, with a trailer and 9.9hp Johnson Seahorse for $500. I got the motor in a barrel today, and it started on the first pull. It runs like a champ, but I can't figure out how old it is. We don't have to title any motor under 10hp in OK, so the only thing I have is the model number. 10R74S.

Best guess 1974

Mine as well, since it is a johnson I believe they usually put the year it was made in the serial number. That's how mine is.

You can also take that serial number and put into google and it should pull up some info just to verify.

It seems so obvious now, I wonder why I didn't realize that is what the 74 meant. Thanks for all the replies!

Good luck with it, hope it brings many good memories.

Try this http://epc.brp.com/Index.aspx?lang=E&s1=c8f6ffad-d847-46d7-ac0f-5f62fd592abf

Go to the pull down, click on Johnson

Go to 1974 9.90 and click on it.

I think you will find you're motor there