There are many sites with (potentially!) useful information on start-up (never final) jetting choices for specific engines by brand and size.
I've seen a lot of time and money spent trying to get a set of DCOE to work on the street using incorrect/unknown/adapted carburetors, the ones that worked were bought as an expensive kit (now $2,000 complete).
One failing, IMHO, is the lack of a "power" (or economy) circuit, there is no provision for lean cruising mixture under high vacuum.
I researched a 235 stovebolt engine on a few sites and deduced these numbers (never tried them). Note that both engine size, breathing and RPM are all different from a Gen-3 292.
Throat size: 45mm
Venturi: 38mm
Main jet: 160
Air correction: 165
Emulsion tube: F2 (possible F9)
Idle: 60F9
You may find the equivalent Dell'Orto DHLA and Mikuni PHH cheaper but without the benefit of extensive use.
