Can anyone help please , I have just bought a CF 450 L Quad , when the fuel tank is full the fuel gauge does read full and will gradually drop as fuel is used , BUT when the tank is well over half full the gauge will suddenly show empty and starts to flash even though there is around 10 litres of fuel in the tank , I have have fitted a new fuel level sensor but the same problem still exists , any suggestions / help would be much appreciated , thank you.