I have a 1979 gs550 e. It seems like it´s running extremely hot and starts to bog down and eventually dies after about 15 miles or so. I let it sit for a few minutes, start it back up and it´s okay for a few minutes then repeats the same thing. Like I said, it seems to run hot, but I just bought this bike and have nothing to compare it to. Any advice or suggestions would be greatly appreciated. Thanks