| Fuel Capacity
I have read somewhere that my ST4 has a fuel capacity of 21 litres, which includes 4 in reserve, I can believe that as I nearly always fill it up with 15/16 litres when the fuel light is on and the fuel level indicator is showing one bar. Do I need to flick a tap or switch that I havent noticed to access the reserve or does the bike do it automatically, is it all just one tank and when the last bar disappears i can be sure of another 30 or more miles ? | 
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