YS Engine YSG1060 Needle Socket O-Ring FZ70S - needle socket seal for small model engines  [YSG1060]

Needle socket O-ring for RC engines

This O-ring is a small-scale replacement seal intended for needle socket and carburetor needle assemblies used on model engines. It serves as a spare sealing part to maintain proper fuel metering and prevent leaks at the needle socket joint.

Manufactured from an elastomeric compound, the ring provides the flexible sealing surface needed around a needle valve socket. Its role is to keep fuel containment stable so needle adjustments remain predictable during tuning and maintenance.

Installation is straightforward: remove the carburetor needle assembly, inspect the socket groove, seat the O-ring into the groove and reassemble the needle socket, checking for smooth needle movement and absence of fuel seepage. No specialized tools are required beyond basic model maintenance tools.

The part is useful as a routine maintenance spare for hobbyists who service glow or small petrol model engines, ensuring the carburetor needle valve retains consistent sealing during setup and track or fly-day adjustments.