Re: brake light switch wiring

Born to be WillD /
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yeah that last answer is likely correct. many bikes ran the brake light off of the ignition coil's ground. This provides a simple power circuit for lights separate from the main lighting coil making brakes simple. But the consequence is that if the brakelight is burned out then your ignition coil isn't grunded and the bike dies. Most people bypass this by grounding the wire directly and switching to a normally closed type brake switch and running it parallel off of the headlight wires. If your brake light dies and kills the bike whenever you hit the brake on a normally closed switch, you can avoid that by making sure the circuit is always closed, just by bypassing the brake switch and keeping the 2 wires in contact, which sounds like your situation.

If you're lucky the 2 wires can be plugged back into the brake switch button, and if the taillight is replaced and proper wattage, everything should work. alternately you may need to spend some time rearranging the brake light circuit to restore functionality, convert to a normally open system which is easier but will dim the headlight when the brakes are active, or you can do what 99% of us do, and just ground the wire and omit the brake light entirely. Use hand signals or just ride

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