Hi Could you tell me how does worn crank sprocket look like? I can hear preaty laud noise on the left lower engine side. So I decided to take of the cover and I found few metal shavings on crank position sensor (held by magnetic field). I'll make the photo of shavings.But I've changed oil and filter 6 times and I have never find any metal shavings or powder in oil filter. Oil is only darker no metal powder or anything. The lock washer lost its lips some time ago but I thought I found all of them in clutch hub but I can be wrong. So it is possible that those metal shawings are made of this washer. I own the bike form may 2007 and I've adjusted valve clearances. I havn't changed the cam chain because the head has been rebuild 2 years ago and the chain is tight (the chain tensioner is only 1/3 in his way out) so I tohought that the chain is ok. The balance shaft has no play in or out and almost no rotating play so I think that the nut on the other side is tight. I don't have flywheel puller yet so I coudn't take a photo of my crnak sprocket but I have seen it through holes in stator. I does not look like new but I don't have any comparison. So I need photo of new or worn sprocket.