YS Engine YSS2005 56SR Replacement Cylinder Sleeve  [YSS2005]

56SR sleeve: fit and compatibility

The YS Engine YSS2005 Cylinder Liner 56SR #S2005 is a replacement part for RC glow engines, acting as the internal wear surface of the combustion chamber for engines identified by the 56SR code.

Its purpose is to replace a worn or damaged sleeve to restore compression and bore integrity. During fitment check for even seating and correct axial alignment in the engine case; where long-term use has changed tolerances, careful lapping or minor machining may be required to obtain proper fit.

Before final assembly, verify piston and ring compatibility and use any specified gaskets or seals. Follow established break-in and fuel handling protocols for RC glow engines. The liner should be treated as a maintenance component to renew the bore rather than a part that increases power output.

Fit this liner when bore wear is observed and follow the engine maker's reassembly steps to ensure dependable operation in RC use.