Triumph Rat Motorcycle Forums banner

1050 gas gauge issue

1420 Views 9 Replies 9 Participants Last post by  Cabinetman
I have run into the first issue with my two week old ST. The gas gauge does not read correctly. On the first tank of gas the gauge went from half full to one bar in less than 5 miles. I was a bit concerned, but decided to fill up and see if things would get better. Today I left my house with four bars shows and when I got to work there where two bars and the llow fuel light was on. When I left work the gauge showed over half a tank. I rode for about 25 miles and the gauge never dropped below half full and the low fuel light never came on. I stopped for gas and was able to put in 5.11 gallons so I was basically running on fumes. Any ideas what might be causing this problem?

1 - 1 of 10 Posts
My fuel gauge is useful enough but...

It does seem a bit non linear as described above.
The explanation I read was that horizontal tank area decreases as the level drops. Eventually all you have is the pump well which is mostly full of pump. Level drops fast with every unit volume removed at that point.

Furthermore it seems a bit temperature sensitive. It reads lower when warm. I suspect they used a self heating fuel cooled type of sender as opposed to a float. Anybody know?
1 - 1 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.