A second thought
After having ridden in a couple of days in rather cold weather (around 9-12 celsius) I have been taking special note if my F650 GS was vibrating when idle. It does a little. Depending on the temperature and how warm the engine is, but it does vibrate a bit (the 2-cyl engine is probably the reason I guess) but it does not bather me at all. Actually I hardly can feel it in the handles but only at my legs, that the machine "is a live".
I hope this description can help you in determine if your machine vibrates abnormally.