YS Engine YSS2047 O-Ring Replacement Kit for 56SR Engines  [YSS2047]

Replacement O-ring Kit for YS 56SR

This O-ring set is intended for maintenance and parts replacement on YS 56SR engines used in small-scale RC models. It is supplied as an accessory pack for engine upkeep and should be used only as an RC model component.

These rings correspond to the 56SR family as indicated by the product designation; fit them only where original O-rings are required. Before installation, clean grooves and mating surfaces to remove debris or scoring to ensure an effective seal.

Installation tips: seat each O-ring without twisting, apply a light film of an appropriate lubricant to ease installation, and avoid stretching beyond normal fit to prevent premature failure. After assembly, carry out a controlled break-in and a leak check before full throttle operation.

Tuning role: O-rings are maintenance items that preserve compression and prevent air or fuel leaks; they do not change tuning parameters directly but are essential for consistent engine performance during tuning and event preparation.