I also love tinkering and respect your endeavor to lower cruising revolutions. I do have to take exception to this statement. I did MANY tanks of gas at 3500 and above. Gas mileage (on a Volusia not a FI C50) did not appreciably fall off till continued cruising at 4300 RPM and above. Then it tanked. So I added an aux tank :?dhillis said:Also, I offer this as a suggestion for folks with a tachometer. If you commute quite often, if applicable, I challenge you to cruise at 3500RPM whenever possible. After a tank of fuel, compare your MPG's to what you would typically get if not in the neighborhood of 3500 RPM's. My experience has been exceptional fuel mileage at max torque RPM.
Here was the data I was using back then http://www.volusiariders.com/viewtopic.php?t=10293