05-09-2020, 08:41 PM
My CB had the valves very poorly adjusted from factory, I did the adjustment with around 1500Km. When you accelerate and then release the sound dissapears (fuel cut), could be an injector? Maybe you can disconnect one injector of right side and see if sound dissapears (will be running with 3 cylinders but doesn't matter if it is 1 minute at idle speed).
