Mine just burned out at about 1,000 miles.
It is super easy to fix by yourself.
-Using a small Philips screwdriver, remove the two screws holding the plastic housing with the Turn Signal, High Beam and Neutral indicators.
-Wiggling this housing slightly, pull housing straight off.
-You will see three lightbulbs mounted in a rubber holder.
-Remove the turn signal indicator bulb (the leftmost one) by pushing down and twisting counter-clockwise.
-Replace with new bulb by inserting bulb and pushing down and turning clockwise. I got my replacement bulb at the local hardware store. The one I took out was marked with only 6V 3W.
-Turn ignition on and test turn signals to confirm that indicator light works.
-Replace plastic housing and screws.