Hey there, been searching for a while for a solution to a problem I have been having and have come up with a solution but on a foreign site. My Hyo GV650 has a knocking/bearing noise at idle with the clutch out and when decelerating. I think I've narrowed it to either the clutch basket nut being loose or an issue with carb syncing. Has anyone else had this issue? If I'm to pull the clutch cover off is there anything else I should do? Someone suggested replacing the thrust bearing and thrust washer (how do I find a part number)? Thanks guys I know someone on here will help with my wife and my learner bike. Mitch.