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What is the function of the Bearing 5×11×4 (21120) on the YIKONG YK4107 RC Car?
The YIKONG YK4107 Bearing 5×11×4 (21120) is a metal ball bearing used in the drivetrain and rotating assemblies of the crawler. Its main function is to...
Why is my YIKONG YK4107 RC Car making noise from the drivetrain?
Grinding or clicking noises from the drivetrain of your YIKONG YK4107 can be caused by worn, dry, or damaged bearings, including the Bearing 12x18x4 (21122). If...
Why is my YIKONG YK4102 RC Car steering feeling loose or vague?
Loose or vague steering on your YIKONG YK4102 is often caused by worn Ball Linkage Ends (13014) developing play at the pivot points. This is a...
Why is my YIKONG YK8081 RC Car leaning to one side after installing new shocks?

Your YK8081 leaning to one side after installing new Shock Absorbers (80040) usually means the spring preload is not evenly adjusted on both sides. This is a common installation issue. Check that both shocks are filled with the same amount of oil and that the spring collars are set to equal...

My YIKONG YK8081 DF8 RC Car's shock absorber is leaking oil – can I just replace the seals?

Yes, as long as the shock body and piston shaft are not damaged. The seals on the YIKONG YK8081 RC Car Parts Shock Absorber (80040) are replaceable wear parts – just replace the seals and refill with fresh shock oil. However, if the shaft is bent or the body is deformed, seal replacement won't fix it,...

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Recent posts

What is the function of the Bearing 5×11×4 (21120) on the YIKONG YK4107 RC Car?
The YIKONG YK4107 Bearing 5×11×4 (21120) is a metal ball bearing used in the drivetrain and rotating assemblies of the crawler. Its main function is to...
Why is my YIKONG YK4107 RC Car making noise from the drivetrain?
Grinding or clicking noises from the drivetrain of your YIKONG YK4107 can be caused by worn, dry, or damaged bearings, including the Bearing 12x18x4 (21122). If...
Why is my YIKONG YK4102 RC Car steering feeling loose or vague?
Loose or vague steering on your YIKONG YK4102 is often caused by worn Ball Linkage Ends (13014) developing play at the pivot points. This is a...