RE: B&S 40cc, 4-stroke recipe for success
Good job on your carb "fix" Jim. I don't know what I was thinking, but I should have mentioned making an adapter to you in our correspondence. As a matter of fact, I had to do the same thing on my Honda. What I did was cut out a piece of 1/4" thick plywood in the shape of the carb gasket. I then made a hole in it, tapering from the carb throat size to the manifold inlet size. I coated it with 30 minute epoxy, and when it was dry bolted it up between the carb and the manifold. Works perfect. Sorry I didn't remember this to advise you earlier. Things have been really crazy for me with our recent move, etc.....
AV8TOR