wELL IN MY 97 M800 THE FUEL GAUGE USED TO SHOW THE CORRECT RATING NUT WHEN THE GAUGE USED TO REACH A LITTLE BIT ON THE LEFT SIDE OF HALF MARK IT USED TO STRAIGHT GO BELOW EMPTY SO I GOT THE THE DEVICE INSTALLED ON THE PETROL TANK CHANGED FOR RS. 400+LABOUR N THE GAUGE WAS BACK TO NORMAL.