PISTON KIT 86-88 YZ125 56.00, WOSSNER 8118DA YAMAHA MX 1LX-11635-00-00

This Wossner 56.00mm standard bore forged piston kit is designed for Yamaha YZ125 models from 1986 to 1988. Manufactured in Germany, it features a forged construction and elliptical design that enhances durability, manages heat expansion effectively, and distributes mechanical loads evenly. Engineered for two-stroke performance, the piston promotes efficient heat transfer from the combustion chamber to the cylinder walls.

Features

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  Forged piston construction for superior strength

  
  


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  Elliptical design ensures uniform bearing surface during heat expansion

  
  


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  Even thrust load distribution helps prevent localised stress and piston collapse

  
  


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  Designed for efficient combustion heat transfer to cylinder walls

  
  


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  Manufactured in Germany

  
  

Specifications

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  Bore: 56.00mm

  
  


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  Actual diameter: 55.94mm

  
  


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  Displacement: 123 cm³

  
  


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  Stroke: 50.00mm

  
  


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  Clearance: 0.06mm

  
  


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  Compression height: 30.00mm

  
  


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  Compression ratio: 2-stroke

  
  

Cross-Reference OEM Part Numbers

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  Piston Kit Part No.: 56-W559+000.WO

  
  


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  Wossner Piston Kit No.: 8118DA

  
  


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  Lock: CW16

  
  


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  Pin: WP036

  
  


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  Ring Set: RSB5600

  
  


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  OEM Reference: 1LX-11635-00-00

  
  

Vehicle Fitments

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  Yamaha YZ125 1986

  
  


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  Yamaha YZ125 1987

  
  


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  Yamaha YZ125 1988