If your YIKONG YK4061 RC Car shock absorber is leaking oil, one possible cause is a loose or damaged Shock Absorber Upper Lid (Part No. 26027) or a worn O-ring. A poor seal allows shock oil to escape, reducing damping performance and affecting suspension stability. Inspect the Upper Lid for looseness, check the O-ring for wear or damage, and replace any faulty parts to restore proper sealing and suspension performance.
