When I started doing tours on my VTR I did the old trick of strapping a small fuel tank to pillion seat and riding to when fuel light came on - zeroed out trip and continued riding until engine stops - you know exactly (aside from slight variation due to riding speed) how many miles / km you have on reserve. This saved me on occasion as France on a Sunday is a real problem - manned petrol stations are generally closed and un manned ones only take French cards - nice bit of European Union there. The other tip I was given but never used was to pack a roasting baster (tube with rubber bulb) as you can usually find another biker who will let you suck up enough to get to a petrol station.heilong;301353 wrote: Visit a gas station right after you see your fuel light come on, and see how much you can fill up in the tank. When I did that, the reserve by my calculations was about 2.5l.
So in theory you can expect 75-80km on reserve, but in practice when the fuel gets really low the bike can't go full throttle, maybe not all of the fuel is easily accessible by the fuel pump.
Lucky you - on my KLX I'm only getting 130-140km before the fuel light comes on. And for safety I plan my reserve as another 50-60km (respectively).