Watched your video. I believe your starting
and running issue is ignition rather than the
carb setting. Points gap may be too small or
too large. Points have been bent and are not
in the correct location to the latch. If you’re
using a 6 volt battery it needs to be fully
charged to 6.3 volts or higher.
Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.