1956 Martinsville, VA.https://pbs.twimg.com/media/Fwe9AitW...jpg&name=large
Printable View
1956 Martinsville, VA.https://pbs.twimg.com/media/Fwe9AitW...jpg&name=large
That gear case was also used on the 850XS
...jon wrights tinker toy. r.i.p. jon...https://www.powercatboat.com/ODBR/TinkerToy/024.jpg
Looks like pic 3997 has some sort of gear box between motor and lower.
Possibly a planetary gear overdrive ?
Pic 3999 is direct.