Well...I did my first carb synch with my new Carbtune.....,and.....It was a success!!! The bike has 6300 miles on it and the carbs have never been synch'ed.What a difference...Idle is amazingly smooth and the acceleration vibration (that I thought was normal) is GONE!!!best 95 bucks I ever spent. Its like a whole new bike!! Now if only the weather would stay nice enough to RIDE IT!!! 55 degrees today...............back to the 30's tommorrow:bang head:.