Replacement Piston Ring YS Engine YSR6201 for 61SH Model Engines  [YSR6201]

YSR6201 piston ring suitable for 61SH

This item is a replacement piston ring for 61SH-class glow engines, identified by the YSR6201 part number. It is provided as a single replacement piece to renew sealing where the original ring is worn or damaged.

Operational benefit: renewing the ring helps reestablish a reliable piston-to-cylinder seal, cutting blow-by and supporting steady compression for improved running during break-in and normal operation.

Fitment guidance: inspect the piston skirt and cylinder bore for scoring and verify piston clearance before installing. Use light assembly lubricant and confirm free piston travel after fitting. If the ring does not seat or the end gap looks abnormal, disassemble and check for debris or part distortion.