That was a standard magneto from 1947 through 1951. (OMC motors from 1946 were mostly left overs from 1942) The new magneto standard came with the 1951 on the Big Twin Evinrude & RD model Johnson. This was on the Gale products 5 horse . . .
and this on the Evinrude 3.3 horse Sportwin . . .
Make sure your breaker points are REALLY CLEAN . . . 😎
Your breaker base is different, but the layout of the insulators is the same. . .
