Fitted a SP alloy tank to my 1198S & I'm still getting the fuel warning light coming on at the same mileage as I did with the S tank & takes the same amount of fuel to fill up the tank (12 litres) All SP internals in the tank too, any idea why the warning light is coming when I've got 6 litres of fuel still in the tank rather than the 3 litres I had in the S tank? Andy