YS Engine YSS1020 Carburetor Gasket for 50ST Carburetor Series  [YSS1020]

50ST carburetor gasket

This gasket serves as a direct replacement sealing element for the carburetor interface on 50ST-series RC carburetors. Designed to restore proper sealing between carburetor components, it supports stable idle and consistent fuel delivery during normal running and tuning sessions.

Installation is straightforward for hobby-grade RC models: disassemble the carburetor carefully, inspect sealing surfaces for old gasket material and contaminants, position the new gasket flat against the mating surface, and reassemble using the original hardware. After reassembly, verify there are no air leaks and check idle behavior before full throttle testing.

For tuning, a sound gasket helps maintain predictable needle and idle adjustments because it eliminates unintended air paths that can skew mixture readings. Inspect the gasket regularly when performing routine carburetor maintenance and replace if you detect compression loss, visible damage, or fuel seepage.