O.S. Engine OS44502000 Crankshaft for FS-200S Engines  [OS44502000]

FS-200S crankshaft description and service notes

This crankshaft carries the O.S. Engine model number OS44502000 and is designed as the replacement crankshaft for FS-200S-class RC glow engines. The focus here is on correct fitment, workshop practice, and the component's part in engine servicing rather than claiming performance benefits.

Compatibility note: this item is listed for FS-200S engines; verify the model marking on your engine before purchase to ensure correct fit. Handle this component with the normal care applied to small model engine parts in a workshop environment.

Service and installation guidance: examine connecting rod clearance and main bearing seats during replacement, adhere to the torque values specified in the engine manual for all retaining bolts, and confirm free rotation before reinstalling the engine. For complex press-fit or bearing work, consult a qualified technician.

Function in tuning and upkeep: the crankshaft is a primary rotating component affecting balance and timing. In service it is common to check this part for wear and runout, replacing it when defects are found to maintain reliable mechanical operation.

For engineers and hobbyists maintaining FS-200S engines, OS44502000 represents a direct replacement crankshaft; always confirm engine identification and follow safe workshop processes during changeover.