YS Engine YSS7111 (61ST-H) Replacement Crankshaft for RC Engine Repairs  [YSS7111]

YS ENGINE CRANKSHAFT 61ST-H #S7111
Price:
£14.86
Brand:
YS Engine
Model:
YSS7111
Condition:
Brand New
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Part description and guidance for YS Engine YSS7111

The YS Engine crankshaft YSS7111 (61ST-H) is provided as a service spare for model internal combustion engine repairs and scheduled maintenance. The following passage covers the crankshaft's purpose in small RC engines, typical rebuild steps and pragmatic installation notes for the workshop.

The crankshaft is responsible for turning piston travel into usable rotary output and helps determine internal timing and balance. When fitting a replacement, check bearing journal condition, validate endplay, and inspect mating surfaces for scoring or wear. This item is intended as a replacement part; verify compatibility with your engine's technical documents prior to installation.

Workshop tips: keep all components free from dirt and grit during disassembly, inspect connecting rod and bearing condition, and tighten bolts to the torque values recommended by the engine maker. After rebuild, follow an appropriate run-in routine and check idle quality and compression as part of tuning and setup.

Specifications

  • Item: Crankshaft
  • Model Number: YSS7111
  • Material: Not specified by manufacturer
  • Compatibility: Not specified, verify with original engine model fit

What checks prevent assembly issues when fitting this crankshaft?

Verify journal straightness and diameter, confirm thrust clearance and ensure mating surfaces are clean and undamaged to avoid misalignment and vibration.

The spec sheet lacks material data — should I be concerned?

Material details are not supplied. If material properties are critical for your application, request further information from the vendor or inspect the part on receipt.

Is this suitable for performance-oriented rebuilds?

The crankshaft is a replacement component intended to restore functionality; any performance gains must be validated through testing after assembly and tuning.

Who can confirm fitment for my specific engine model?

Consult your engine's service manual or contact the parts supplier with the engine model reference so they can confirm whether the YSS7111 suits your application.

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