YS Engine YSS1022 50ST Carburetor Insulator Replacement  [YSS1022]

Replacement insulator for 50ST carburettor mounting

The YS Engine YSS1022 carburetor insulator is supplied as a replacement component for 50ST-class RC nitro engines, intended to sit between the carburettor and engine flange and restore the correct mounting interface. It is provided for use during maintenance and part swaps.

Compatibility reminder: the product is specified for 50ST compatibility; cross-application to other engine types should only be assumed after checking the official parts documentation. Fitting requires removal of the carburettor and reassembly with the mounting fasteners tightened to the engine maker's recommended torque.

Fit verification: the insulator helps keep a consistent flange interface and mitigate heat transfer at the joint. Always clean mating surfaces, inspect gasket condition, and check studs for straightness before reinstalling to ensure a proper seal.