Anyone have B X S specs for the 3.5, and 5 hp Neptune’s for 1948 – 50?
I got a rough bore measurement through the exhaust port of 1.763 ish inches.
May be handy to know which parts motor I have in case someone needs
parts, or I see a Neptune of the same vintage.
Found out the low compression on the top cylinder was because the
upper piston coughed up part of a ring, but lots of good parts anyway.
Prepare to be boarded!