I used a Mercury float to replace the cork floats on the old Johnson motors and a Neptune mighty might and it worked great. It will work with the late 1940 to mid 1950’s 3hp and 5hp Gales. Frank introduced the idea some years back and they work great.
Sierra P/N 18-7208. It is a foam float so it is ethanol resistant. Slight modification and it was good to go.
