Crankcase Upgrade for 50ST Tuning - YSS1001 compatible with 50ST by YS Engine  [YSS1001]

YS ENGINE CRANKCASE 50ST #S1001
Price:
AUD$36.51
Brand:
YS Engine
Model:
YSS1001
GTIN:
4560105739558
Condition:
Brand New
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Crankcase Designed for 50ST Tuning and Rebuilds

This crankcase is the replacement casing listed as YS ENGINE CRANKCASE 50ST #S1001 and is intended for use on the 50ST engine family in RC models. The section below concentrates on tuning implications, fitment notes, and service steps.

Fit this part during engine rebuilds or when preparing a 50ST for precise tuning work. The crankcase locates internal moving parts and establishes the mounting pattern for external components; always verify your engine's code against the product information and follow the service manual for correct assembly.

Specifications

  • Item YS Engine Crankcase 50ST #S1001
  • Material Not specified by manufacturer
  • Model Number YSS1001
  • Compatibility Designed for 50ST engines

This replacement crankcase helps restore the correct geometry for dependable engine response, supporting consistent tuning and reliable on-track behavior for YS 50ST-series engines.

Will a new crankcase affect engine balance during tuning?

A properly fitted crankcase restores the intended alignment and bearing seats, which helps preserve balance and repeatable tuning outcomes rather than altering inherent balance.

Do I need to re-check ignition and timing after replacement?

After assembly, verify ignition settings and timing where applicable, since reassembly can change clearances and mounting positions that affect timing components.

Is additional balancing of rotating parts required?

If the crankcase swap restores original fit and bearings are in spec, further balancing is typically unnecessary. Check for play or runout and address any irregularities before tuning.

Any tips for setting up after installation?

Clean mating surfaces, use new seals and bearings as needed, and run a controlled break-in procedure while monitoring temperature and response to confirm correct installation.

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