YS Engine YSG1060 Needle Socket O-Ring - Needle Socket Seal for Small Model Engines  [YSG1060]

Replacement O-ring for model engine needle sockets

This O-ring is a small-scale replacement seal designed for needle socket and carburetor needle assemblies used on model engines. It is intended as a service part to preserve accurate fuel metering and to stop leaks around the needle socket joint.

Made from a nitrile elastomer, the ring gives a flexible sealing surface that fits around the needle valve socket. Its role is to stabilise fuel containment so needle adjustments remain consistent when tuning or maintaining the engine.

Fitting is simple: withdraw the carburetor needle assembly, check the socket groove, press the O-ring into the groove, then reassemble the needle socket while verifying smooth needle movement and no fuel seepage. No special tools are required beyond basic model maintenance tools.

The part is useful as a regular maintenance spare for hobbyists who service glow or small petrol model engines and want reliable sealing at the carburetor needle valve during setup and track or fly-day adjustments.