Logo

Johnson Motor identification

Tharmon01

New member
I purchased a Johnson outboard motor recently and am having trouble identifying it. The identification plate shows Model number as RX-11A with a SN of 2335270. The ID plate also states that the motor operates at 28 hp at a 4500 rpm range.

However, the motor cover states Johnson Super Sea horse 33 hp electric

Ive searched on many different sites and cannot find this Johnson model number of RX-11A anywhere. Based on how the cylinder head looks compared to the diagrams on iboats it seems that it could be anywhere from a 1962- 28 hp to a 1964 - 28 hp, but I really cant tell.

The cylinder head has a number stamped on it of 30905?. I cant seem to find that part number anywhere either. I'm adding a few pics of the cylinder head.

Can anyone help me identify this motor and cylinder head? i'd really like to get this engine running.

Thanks so much in advance.

Todd
 

Attachments

  • Boat2 (2).jpg
    Boat2 (2).jpg
    56.1 KB · Views: 55
  • Boat1 (3).jpg
    Boat1 (3).jpg
    52.7 KB · Views: 53
Back
Top