dont let anybody tell u that just because u have oil on your tank that u have glazed bores-bikeworks ya bastards. all u need to do is simply replace oil line fittings which is quite an easy task. how much money do these buggers make out of wrong diagnosis?if tempting to do ones self just make sure that u use a bit of wire and carefully extract all 3 o rings from each seat. this problem seems to occur around 40000 to 50000. . now onto getting rid of some of the non genuine shit on this  ride... RIDE ON.