I have a 1974 Honda Cb125.
The other day, she started fluttering at speeds above 30mph. I had run into this issue before, and it turned out to be a bad spark plug connection. I have since replaced the spark plug cable, and the plug itself. The bike ran fine after that.
I trucked my bike home, and started toying around with it. Not only is it now-impossible to start (before, it would start on the first kick), but with the key turned to on, a strange clicking sound is made (and my neutral indicator winks at the same rate as the clicking sound).
It is coming from the circle to the left of my battery (I can feel the vibration):
I do not know what that part is called, but I believe it is the blinker relay or condenser?