YS Engine YSS8110 connecting rod replacement for 61ST-2 series engines  [YSS8110]

Connecting rod for 61ST-2 engines

The YS Engine YSS8110 connecting rod is an OEM spare aimed at modelers servicing YS 61ST-2 series glow engines. As an RC-scale internal engine part, its role is focused: transfer piston motion to the crank while maintaining alignment and durability during running cycles.

This part is supplied for direct replacement of worn or damaged connecting rods on engines labeled 61ST-2, ensuring part-number consistency with existing YS service parts. The design emphasis is on accurate fit at the rod big end and small end interfaces to preserve engine timing and compression geometry.

Installation notes: inspect the crankpin and piston wrist pin for wear before fitting a new rod, replace bearings or bushes as required, and check endplay and clearances after assembly. Use measured running-in and regular checks during engine break-in and tuning to confirm stability.

Tuning and service role: the connecting rod itself does not alter engine power curve, but a correctly fitted rod supports stable combustion and predictable tuning outcomes, which is important for consistent bench testing and race-day spares management in club-level RC competition and hobby use.