I am puzzled by the dimmer switch on my 1991 project bike. I have disassembled, cleaned, and inspected the switch, and I donĀ“t have a contact between the power feed and the stator plate. The spring has plenty of pressure and the proximity of the contacts seems close enough to work, but still no continuity. I have another used unit coming the 20th, but I am stubborn and hate to give up.