My MTS 1200S my2011 has about 62000km. I was checking timing belt and regocnized timing belt vibration just like in this video: Vibration is between main pulley and tensioners, only horizontal belt was visible so no idea about vertical belt behavior. No visible wear on belt, bearings of the tensioners feels ok, tension of the belt is ok. At idle no vibration, when revving vibration comes in, is it normal behavior or not?
