50ST Carburetor Insulator for Improved Mounting YSS1022 by YS Engine  [YSS1022]

Mounting insulator for 50ST engines

This YS Engine YSS1022 carburetor insulator is a simple replacement part made to sit between the carburetor and the engine flange on 50ST-class RC nitro engines. It serves as a direct spare to restore proper spacing and isolation during routine maintenance and part swaps.

Fit guidance: the name identifies compatibility with 50ST models; always verify fit against your engine's official parts list before installing. For installation, basic disassembly of the carburetor-to-engine joint is required and you should re-torque the mounting fasteners to the values specified by your engine manual.

Practical tip: as an insulating spacer, the component helps maintain the carburetor mounting interface and supports consistent bench setup and track performance. Inspect gasket faces and mounting studs for damage and ensure mating surfaces are clean before final assembly.