YS Engine YSS2005 Cylinder Liner — 56SR Series Replacement Sleeve  [YSS2005]

Replacement sleeve for 56SR engines

The YS Engine YSS2005 Cylinder Liner 56SR #S2005 is a direct replacement cylinder sleeve made to service RC glow engines. It provides the wear surface inside the combustion chamber and is intended for engines identified by the 56SR designation.

Fit is straightforward: the liner replaces worn or damaged bores to recover compression and bore integrity. Check for a snug seat and correct axial alignment in the engine case; minor light lapping or careful machining may be necessary if the original tolerances have shifted after extended use.

For maintenance and tuning, confirm piston and ring compatibility before reassembly, use any sealing gaskets called for by the engine maker, and follow standard break-in and fuel handling practices for RC glow engines. This liner is a service item to renew the bore rather than a power upgrade.

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