I have a 1984 K-100 and for the past couple of years the brake indicator light on my instrument cluster comes on after the bike has been running for 10-15 minutes. I´ve had other riders check out my brake lights and turn signals when riding and they see no problem. I´ve mentioned it to the dealer where I have the bike serviced the past two or three times I´ve had it in and they can´t give me an answer. Any thoughts are appreciated.