A guy made this step by step procedure to adjust the RX3´s fuel level sensor.
It´s in spanish, but there are plenty of pictures that maybe will help you:
https://coltermoto.wordpress.com/tri...ible-flotante/
From my point of view it is useful for the "zero" adjustment (let´s say: "E" light blinking exactly when there is time to switch the fuel valve to the Reserve position), but isn´t enough for the "full span" adjustment also required: after that my fueld gauge is perfect for Empty, but indicates "Full" at 50% of fuel.
