left turn signals work normal for maybe 5 seconds then flash real fast--is that the flasher? Where is it at anyway?

'11 Superglide

 

Had this same problem a long time ago on a Sportster. It turned out to be a disconnected wire that I had to solder back together. I could be wrong, but I would check the wires if you haven't already.

 

x2 on the disconnected wire. Just happened to me last week. Does you rear turn sig stop flashing and the front continues flashing?

 

it keeps working-flashes normal for maybe 5 seconds then flashes fast and stays going

 

Yeah I would still check the wires. On mine, it appeared that way on the console but the flasher it self had stopped flashing.