New to me 2005 Vulcan 500, just under 1100 miles. I will need to get it in to have the carbs pulled and cleaned out real good to get it running right, but I've been tooling around in the neighborhood a bit. I've noticed after the bikes been running for a while, when I pull on the front brake lever, I can hear a buzzing sound. Doesn't seem to change with speed/engine RPM's, and doesn't matter how hard/soft I pull on the brake lever. The only thing I can think of that seems to fit what I'm hearing would be maybe a relay for the brake lights? Are there any other electronics involved in the braking system?