SOHC.co.uk Forums > CB750

Help me, what's that noise?

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MrDavo:
It looks normal to me.

If your carb synchronisation or timing is out, the rough running will cause noise from the cam and primary chains. Have you had this checked?

hairygit:
Can see it now, yes it looks perfectly serviceable. Have you adjusted the tappets since having it running? And what sort of condition were the rubber wheels on the tensioner and guide in?

El__burro:

--- Quote from: hairygit on June 07, 2017, 03:57:02 PM ---Can see it now, yes it looks perfectly serviceable. Have you adjusted the tappets since having it running? And what sort of condition were the rubber wheels on the tensioner and guide in?

--- End quote ---
I'm not sure if i can check the rubber weels without opening the engine..
or can I?

Carbs sync done a while ago. Timing before that.
Do them both soon.
Thanks
el__burro


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hairygit:
I was talking about when the motor was apart. You can't see them when the motor is together. Have the tappets been checked/adjusted since getting on the road?

royhall:
Are you sure the sound your hearing isnt just the usual clutch rattle. They sound like a bag of spanners when ticking over. At tickover in neutral pull in the clutch and see if the sound gets less. If it's that you may be doing work for nothing, all the 750's have some degree of clutch rattle. Never did find a proper working solution for that.

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