YS Engine FZ115S Disc Valve Pin Set Screw - YSG2049 Precision Fixing  [YSG2049]

YS ENGINE DISC VALVE PIN SET SCREW FZ115S #G2049
Price:
AUD$4.53
Brand:
YS Engine
Model:
YSG2049
GTIN:
4560105742336
Condition:
Brand New
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Installation and handling notes

This YS Engine YSG2049 set screw is designed to fasten the disc valve pin on YS FZ115S disc valve engines. Use it as a replacement fastener while rebuilding, tuning, or maintaining the disc valve assembly on RC models.

The set screw secures the disc valve pin so the valve plate and related components keep correct indexing during operation. During maintenance, ensure the screw is fully seated and verify the valve plate alignment before final tightening to prevent misalignment issues.

Fitting steps: access the disc valve area, position the disc valve pin, insert the YSG2049 set screw, and tighten by hand before using the correct driver to finish snug. Avoid over-torquing and confirm the valve plate moves freely after installation. Carry spare screws for on-track or field work.

Will fitting this screw change engine performance?

When installed correctly the screw only secures the pin and should not alter engine output; incorrect seating can cause valve misalignment that negatively affects operation.

How do I verify alignment after fitting?

After tightening, rotate the valve plate gently to confirm free movement; if any binding occurs, recheck the screw seating and pin position.

Which tool should I use to tighten it?

Use a driver that matches the screw head, hand-tighten first and finish with a small driver to avoid over-torquing and damaging threads.

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