Hello Friends,
I recently acquired a hardtail bobber with a TT120R motor, Boyer MKIII electronic ignition and a few electrical issues. Disc brakes front and rear. It's only running headlight, taillight and brake light.
Brake Light Issue: Both the headlight and taillight work, but neither front nor rear brake levers activate ta brake light. It has aftermarket Harley-style handlebar controls, and the brake lever has two wires running from a switch. It has a 2-tab, hydraulic brake light switch in the rear brake line that has one tab broken off. The wires and connectors are there, but they weren't plugged in when I bought the bike. I opened up the front brake control and didn't see any loose wires or other obvious problems. I touched the leads from the rear hydraulic brake light switch together, but the tail light did not illuminate.
Other Electrical Issue: The previous owner (who definitely was not the builder) told me the battery sometimes goes dead. He said he thought the motor might still have a 6v alternator even though the electrical system was 12v. He said that as long as he keeps the bike on a battery tender, he never experienced a problem on 1-2 hour rides (although I gather he must have been stranded at some point). I've done the same and, so far, have not been left stranded anywhere. The bike has both an ignition and a kill switch PO says the kill switch was installed to cut off power from the battery. However, the kill switch doesn't seem to affect battery power and seems to be wired directly into an electronic box sitting next to the Boyer unit.
Best Regards,
Anthony Martello
xkglow.com