Sym CityCom 300 "winker"
 

I have a turn signal indicator switch that turns the signal lights on, but does not blink. No dealer left to help me, anyone have the part, or at least know which one I need? Thanks!

If it lights up on the dash and the bulbs light up, i believe you need a turn signal relay or what used to be called a "flasher".
After you locate it, remove and most of those can be had at about any auto parts store.