After getting my 2006 out of storage the right signal is on and won't cancel.  I presume I may have inadvertently pushed the switch over after the putting the cover on and it was stuck there this winter.  The left signal works OK.  I took the switch housing off the bar and sprayed some lubricant in it, and also at the black plastic external switch.  I took the lights out of the signals until I can repair this.  It appears the covers were glued on instead of screwed.  Will the whole assembly have to be replaced on the left bar to repair this?

Sounds like a short to me. You may have a loose wire touching somewhere where it shouldn't.