08-05-2023, 12:37 PM
I don’t know if this is of any use but thinking out of the box. The two exhaust valves that are pale looking are both to one side of the block being served by one branch of the inlet manifold. Could it be that that the mixture from the carb is not equal to both branches. Thus two cylinders being richer/weaker than the other two.
John Mason.
John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.