Hi Greg,
Like the others, my mileage depends on how aggressively I am driving. The worst I ever had was switching to reserve at 110 miles but I was running 90+ the whole way and even more when passing. If I did more highway miles, I would change my sprocket to an 18T.
Casual riding gets me close to 50 and for your information, here's my setup:
MPG: varies
Pipes: Epco 42" slash
Airbox: gone; Freaked with pre-filters
AI: Removed
Jets: 160 main/42 pilot
Plugs: Stock spark plugs
Carbs: Stock Keihin CVK
Needles: TBS
Drive: Chain - Stock (17T front/42T rear)
Other: N/A
Elevation: ~2 ft above sea level
