Main Motorcycle: Thruxton R
Join Date: Aug 2016
That is not how my R is odd. My R, which I think is similar to others, takes a while to register when fuel has been added so the gauge reads empty for about 2 or 3 miles until it adjusts. The other thing that is a little odd is that the range adjusts depending on your driving style and it adjust quite a lot. So I live in London and it will show about 110 miles when full if I am riding locally but if I take a ride out of the city and specifically on to motorways where I cruise at a steady 70 the range will go up massively. So I can start a journey with a range of 60 miles and drive for 20 miles and it will show a range of 100 miles.
Your bike though appears to have trouble adjusting to the correct fuel level which is slightly different. My wife's Vespa, I know, a slight tangent, had a similar problem and I only cured it by replacing the sender unit so I would suggest a chat with the dealer you bought it from.