YS Engine YSS6205S Piston, Piston Ring & Cylinder Liner Set for 61SH  [YSS6205S]

Piston, Ring and Cylinder Liner Set for 61SH

This YS Engine YSS6205S spare set is intended for RC-scale glow engines specified as 61SH. The assembly replaces worn piston, piston ring and cylinder liner components to restore compression and reduce blow-by in model engines.

Designed for hobby use only, the set targets routine engine overhaul and mid-life rebuilds on 61SH units. As with any engine spare, inspect mating surfaces for scoring, check ring seating and verify liner roundness before final assembly to ensure reliable running in RC applications.

Use this set when compression loss or excess oil consumption indicate worn internal components, replace as a matched set to maintain consistent cylinder geometry and running stability in RC glow engines.