This YS Engine YSS2011 crankshaft is a direct replacement designed for the 56SR engine family. It serves as the rotating core inside the engine assembly and is supplied as a single spare intended for maintenance, tuning, and repair of hobby RC engines.
Practical fit and service notes: verify that the engine stamp matches the 56SR designation before purchase, inspect associated bearings and seals when removing the old crank, and keep all components clean to prevent contamination during reassembly. This part is intended for model engine use only.
Installation normally requires basic engine disassembly to access the connecting rod fasteners, correct alignment of timing parts, and careful handling of bearings. If you lack experience with engine teardown, seek assistance from a technician familiar with glow or model engines to avoid damage.
Use this crankshaft as an equivalent spare when servicing a YS 56SR engine, and follow standard workshop practices for cleanliness and correct reassembly to preserve engine performance and longevity.
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