This is the reverse resistor, , during a rear tire change I noticed the wire that connects to the large stud above the red wires, was loose. The wire terminal has a flag to control position or orientation. I am not certain what was the original position, as none of them make any sense. The easiest assembly aligns the flag part down over the insulator, but the terminal contacts the raised aluminum part just to the right of the stud and insulator. This would ground that terminal.
Does anyone have a diagram for the reverse system, or could someone shove a camera under their bike to show the position of the terminal.?