Replacement Connecting Rod YSS8110 for YS Engine 61ST-2  [YSS8110]

Rod for 61ST-2 Service and Repair

The YS Engine YSS8110 connecting rod serves as an aftermarket replacement for YS 61ST-2 series glow engines. Its job is straightforward: move piston motion into crank rotation while keeping alignment and durability through operational cycles.

This unit is offered as a direct replacement for worn rods on 61ST-2 engines, ensuring correct interfaces at both big and small ends to maintain engine timing and compression geometry.

Installation checklist: examine crankpin and wrist pin for wear, renew bearings or bushes when necessary, verify endplay and clearances after assembly, and follow a controlled run-in routine during initial tuning.

Operational note: the connecting rod does not modify the engine power curve, but installing a true-fit rod supports steady combustion and repeatable tuning outcomes for bench testing and club events.