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

Replacement Piston, Ring and Cylinder Liner 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.

Fit this matched set when you detect compression loss or increased oil consumption; replacing piston, ring and liner together preserves consistent cylinder geometry and stable running in RC glow engines.