[UteMachine]

Nice work 124. I am going to check mine. When you say lube, do you mean water proof grease or motor oil? Then you lube the part you referred to in the diagram? Thanks!

[Monkeywrench]

Does the noise go away when you raise the throttle?
If so, that counterweight and/or spring isn't functioning properly, as it should be swinging out of the way like 124 mentioned.

[124]

I'd use assembly lube or engine oil.