Im on a 2002 FLSTCI. Ive been having quite a few issues with performance loss as well as sputtering and also my fuel gauge appeared to have gone bad. After jumpering a wire from the the speedometer assembly acorn nut directly to the battery ground all of the issues disappeared. I assume this means that I have a bad ground somewhere. Now if someone can tell how I start looking for this ground or in what area I should start looking. It would be a great help.