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

Gasket for 50ST Carburettors

This gasket functions as a direct spare sealing element for 50ST-series carburettors, reinstating a tight seal between mating parts to support consistent idle and steady fuel delivery during use and tuning.

To install: carefully dismantle the carburettor, remove old gasket material and clean the mating faces, lay the replacement gasket flat against the surface, and reassemble using the original screws. Once fitted, check for any air or fuel leaks and confirm idle stability before undertaking full-power runs.

Maintaining a good gasket is important for tuning, since it prevents stray air paths that can upset needle and idle adjustments. Replace the gasket if you observe fuel leakage, visible damage, or a loss of compression at the joint.