my triumphs fuel tap has come off so cannot ascertain if it is running on reserve etc, all there is , is a metal circle, with the bottom bit sliced off so like 3 quarter moon, does that mean in reserve, i hope so, coz it will only run about 1/6 miles then runs out of energy and stops, feels like lack of fuel, also where can i buy fuel tap,please help as would like to get out in the lovely weather. many thanks fiona