I don't know what is going on with my bike. Ever since the first tank, the reserve starts flashing at about 150 miles and I fill within 30 miles for 2.2 to 2.5 gallons. That means my bike is hitting its reserve with 1.2 - 1.5 gallons in the tank or about 90 miles...
Sounds like a problem with the fuel level sender in the tank. Take it to the dealer for warranty service.
Mine always hits the flasher at about 215 miles (give or take) with 0.7-0.8 gallons remaining.
Greg