How long is a piece of string?!
Fuel consumption is related to various factors, including mechanical condition of machine, tyre pressure,loading, but mainly its down to the rider. How you read the road & anticipate changing situations/conditions,use of gears,brakes& throttle.
I can get anything from low 30s to approaching 50mpg on my FZS1000-depends how I ride!
One thing is certain however-fuel is never going to become cheaper with rapidly rising demand from developing countries-mainly China & India and thats the actual cost of fuel-not the extortionate additional[size=78%] tax burden imposed on us by the government.[/size]
I used 150Litres less fuel in my "cage" in 2011 compared with 2010 not by driving it any differently but by using it less and riding/walking more.
Its interesting that the only real growth in two-wheeler sales last year took place in the 125cc sector, in response to rapidly increasing rail/bus fares,pump prices and worsening congestion/parking issues.
How about a Euro-emissions compliant replacement Honda 90? A Yammie YBR 125 will ,in the right hands, return over 90mpg.