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

61SH Cylinder Kit: Piston, Ring and Liner

The YS Engine YSS6205S spare package is built for RC-scale glow engines designated 61SH. It supplies a replacement piston, piston ring and cylinder liner to address worn internals and improve sealing in model engines.

Intended for hobby maintenance and mid-life rebuilds, this set assists with restoring performance on 61SH units. Prior to assembly, clean all mating parts, inspect for scoring and confirm the liner bore is within acceptable roundness to ensure proper ring contact.

Replace this matched set when compression decline or high oil consumption is apparent; matching components preserve cylinder geometry and steadier engine behaviour in RC applications.