Re: 1932 Johnaon K-50 Paint? & Horse Power

[10717]

I am looking for a K and trying to figure out the changes over the years. The carb seems to have changed in 1935 (improved linkage between the carb and mag?) and the displacement seems to have increased in 1939. The designation went from "K" to "KA" to "KS" and "KD". I think "S" was standard and "D" was deluxe (with a recoil starter), but what does "A" mean? Did they all use prop wash for cooling? Goal is to use the engine on my great uncle’s 16′ Thompson cedar strip. I would appreciate the pros and cons of the variations. Thanks.