I don’t have one of these but I suspect the
change in the point gap likely a result of
some ware where the timer moves around
the block.
There isn’t a timing point to set as the timing
in these early outboard motors varies to
control the speed of to motor.
Here is a short video that should give you a
better understanding of timing for these
early outboard ignitions.
https://youtu.be/Nz_o0J70Pas?si=N-OXJKYw1zbx9SwE
Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.