If your YIKONG YK4061 RC Car develops clicking, knocking, or vibration from the drivetrain, inspect the Longitudinal Universal Joint Shaft – Long (Part No. 26050). Loose retaining screws, worn universal joints, improper installation, or excessive wear on the gearbox or rear axle connection points can all cause abnormal drivetrain noise and reduce power transmission efficiency.
Check that both ends of the driveshaft are fully seated, the retaining screws are securely tightened, and the universal joints move smoothly without excessive play. Replacing worn or damaged components promptly helps restore smooth power delivery and protects the drivetrain of your YIKONG YK4061 RC Car.
