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Yamaha YZ125 1974-76 Cylinder Sleeve 56mm

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ID: 3545
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For many vintage bikes out there it can be hard to find a replacement cylinder.  A new Cylinder Sleeve can save a vintage bike’s life.  VintCo offers high quality USA made, cast-iron Cylinder Sleeves for your vintage machine.  This Cylinder Sleeve fits your 1974-76 Yamaha YZ125 machine.  These high quality Cylinder Sleeves are made with modern materials and manufacturing techniques to ensure an as good or better than OEM fitment and performance.  All dimensions are provided for an experienced and qualified machinist to install in your cylinder.  The ports are angled correctly so there is significantly less port matching work required than in other sleeves. This sleeve will be able to be bored and honed to your stock size VintCo piston kit. A new, high-quality, cast-iron Cylinder Sleeve can help your vintage bike run like new.  VintCo helps you keep the ride going! 

  • Made For VintCo By Advanced Sleeve
  • Piston Part # PSY01-00
  • Bore 56mm
  • Height 117.5 mm
  • OD 59.9mm
  • Flange OD 63.5mm
  • Flange Height 5.2mm
  • Wall Thickness 3.6mm
  • Intake 22.5mm
  • Exhaust Port Location 25.4mm

Stock Availability: in stock


  • 1974 Yamaha YZ125
  • 1975 Yamaha YZ125
  • 1976 Yamaha YZ125

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