I may have the fuel economy issue worked out on the bike, but I'll need to burn a few tanks of gas to verify it.

The previous owner drilled out the cap on the pilot screw and adjusted it to somewhere around 8-9 turns from seated (or the bike vibrated it out). From the factory, it's supposed to be 1 1/2 turn out, so I was basically shooting gas out the tail pipe

Making the bike run leaner seems to have fixed a few fuelling issues (surging, odd throttle response), so I'm very hopeful on the fuel econ.