On the way to Strugis the fuel gauge stopped working, always reads full, at the same time the instrument lights went out on the fuel, air temp and oil pressure gauges. Is there a test for the fuel gauge/ sending unit to find out if one is bad or shorted out? The bike is a 2006 flhtci with 76k. I suspect there is a short some where in the system but don't know where to start looking. In June the battery, stator and regulator went bad and were replaced in that order, each time the charging system was checked and the out put was 14.5v.