YS Engine YSG2045 Connecting Rod Replacement for FZ115S Fitment  [YSG2045]

Fitment and Compatibility for FZ115S

This YS Engine connecting rod YSG2045 is a replacement part intended for the FZ115S RC engine family. It couples piston travel to the crankshaft inside the powerhead and is used as a direct swap when inspection finds wear or damage during servicing.

Fitting the rod involves standard engine disassembly and methodical reassembly: check mating surfaces and bearing journals for wear, apply clean lubricants during assembly, and confirm accurate fitment before any bench or running tests. As an internal powerhead component, correct alignment and proper fastener torque are important to prevent premature deterioration.

Consider the connecting rod a maintenance item — replace when inspection or run-time indicates fatigue, and re-verify clearances after a rebuild to maintain steady engine operation.