61ST Series Gasket YSS7103 for Cylinder Head - YS Engine  [YSS7103]

Product Brief: Gasket for 61ST Series

The YS Engine YSS7103 cylinder head gasket is a direct replacement for 61ST-series model engines, sealing the head to the sleeve to preserve compression and reduce blow-by during running.

Replace this gasket during head service, after resurfacing checks, or if you observe compression loss. Confirm both sealing faces are clean and true before fitting to ensure a long-lasting seal and steady engine response.

Installation notes: clean the head and sleeve sealing faces, position the gasket evenly, and tighten the head bolts to the engine manufacturer's recommended torque in a crisscross pattern to avoid distortion. The gasket's role in tuning is primarily sealing reliability that supports repeatable compression and consistent warm-up behavior during jetting adjustments.