SOHC.co.uk Forums > CB500/550

Engine Rattle- Valves or more sinister?

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heli_madken:
Yep same here sounds fine to me

murdock:
Yes, there is a tinkling sound, are you sure it is inside the engine?

AshimotoK0:
Could it be play in rocker shafts between the shaft and  'egged' rocker cover shaft bores? (shafts rotate in cover and wear the cover bores)

Explained here:- (don't think his fix is the way to go though as a long term solution)

https://www.youtube.com/watch?v=MDIkDb_HhKw
https://www.youtube.com/watch?v=gDDK6ZOxmno

Oddjob:
Bottom end chatter, most likely primary chain banging around, a carb sync may help that. Is the clutch basket shimmed out?

Rear brake lever is far to high BTW.

Top end, did you inspect the rocker faces? I'd recheck the clearances as well, they can change as the head beds down.

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