Trying to Find Age and Model of Motor

[cart1775]

I'm new to this forum, so I hope I am posting correctly.
I recently bought a old boat with a Johnson outboard motor. I was told that the motor was a 7.5 HP and the age was in the 70's. I have tried all of the information I could find on the internet and I am still looking for the correct model and HP. The only numbers I can find on the motor are located on the motor on a small silver plate in the block of the motor. I know the motor is a 2 cylinder 2 stoke. The number on the motor is J3197267. I haven't been able to match this number with any of the Johnson motors listed on various websites.
I would be very grateful for any help I could get on this motor.

Thanks in advance,

Jim

[Joe Reeves]

That is no doubt the Johnson Serial Number. However what is needed is the Model Number.

Look for a small plate attached to the port (left) transom bracket, a quarter size core plug (looks like a small freeze out plug) on the powerhead, or a larger plate that may be attached to the center portion of the engine that would be just above the transom when mounted.

The older 7.5hp models (1956,57,58) would be AD-10, 11, 12).

Let us know what you find... If nothing... pictures would help.

[cart1775]

Thanks for your help and reply. I will look for any additional numbers. I scoured the motor and boat but may have missed something. I'm not sure that the motor is a 7.5 HP, that just what I was told. I know for sure it is a 2 stroke and has 2 cylinders. . I will take some pictures.


Jim

[cart1775]

Hope this works. Here are the only numbers I could find on the motor.

https://www.amazon.com/photos/share/...NXOkkJJpr3tjQK

[cart1775]

More pictures of the motor.

https://www.amazon.com/photos/share/...wha7Y2p9X3jFBo

[Joe Reeves]

The "J" at the beginning of that serial number indicates that the engine is a "Johnson"... however, that blue paint indicates that it is an Evinrude. Also the design of the engine in its entirety is identical to that of a Evinrude 6hp model. My opinion only of course.

The serial number and the core plug upon which it is imprinted appears to be the original... if it were a replacement powerhead, it would be imprinted with RPH in A capital font/print.

Frankly, I'm at a loss to identify the engine, sorry.

I'd suggest that you check further via MarineEngine.com and iBoats.com as there are some fellow members there that may be able to help you.

[cart1775]

Thanks for the information and your help. I was told the motor was a Johnson 7.5 HP. However that is what the precious owner was told and may not be the correct information. The motor wasn't registered here in Texas and that's my problem. I need the model and serial number. There is no telling how many times the motor has changed hands so the correct brand and motor size is long gone. Anyway I thank you again for you help and the information.

Jim