YS Engine YSS2047 O-ring Service Kit for 56SR  [YSS2047]

56SR O-ring Replacement Set

This O-ring set is designed to support maintenance and component replacement on YS 56SR RC engines. The pack is intended as an accessory for model engine servicing and should be handled as an RC part.

Rings are matched to the 56SR series as indicated by the product code; use them only where the original O-rings are specified. Clean grooves and contact surfaces before fitting to avoid sealing issues from dirt or scoring.

Practical fitting tips: avoid twisting the O-rings during installation, use a thin layer of appropriate lubricant to help placement, and do not overstretch the rings. Complete a careful run-in and leak inspection before subjecting the engine to full power.

Durability note: O-rings are consumable items that preserve compression and prevent leaks; they do not directly affect tuning settings but are vital for consistent performance under tuning and competition conditions.