YS Engine YSS2005 Cylinder Liner 56SR replacement sleeve  [YSS2005]

Cylinder liner for 56SR series

The YS Engine YSS2005 Cylinder Liner 56SR #S2005 is a direct replacement cylinder sleeve designed for RC-scale glow engine maintenance and repair. It serves as the wear surface inside the engine’s combustion chamber and is intended for models identified by the 56SR designation in the product name.

Fitment and function are straightforward: the liner replaces a worn or damaged sleeve to restore compression and bore integrity. When assessing fit, check for snug seating and correct axial alignment in the engine case; minor machining or light lapping may be required where the original engine tolerances have shifted over long use.

For tuning and maintenance, installers should confirm ring and piston compatibility before reassembly, use proper sealing gaskets if specified by the engine manufacturer, and follow standard engine break-in and fuel handling practices for RC glow engines. The liner’s role is maintenance-focused rather than performance-enhancing, offering a serviceable way to renew the engine bore.

Use this liner as a service replacement when bore wear is evident, and follow engine-specific reassembly practices to ensure reliable operation in RC applications.