Hi, my first post. At present I have an 84 XT600, looking for a 660R. I took some test rides on the weekend one of which was a 2010 Tenere at about 8000 miles ( never ridden a 660 before ). Loads of power but man I thought it was going to shake my skid lid off! Vibration was dreadful, the bike looked shiny new, the dealer wasn't interested in my comments. My expectations were destroyed. Next day thought "this can't be right" and went somewhere else and tried a 2009 660R similar mileage. It was sweet as a nut, faith restored. Any ideas what was wrong with the 660Z ?