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Being the biggest

is not our quest,

being the best is 

  • Single Stage configuration for improved performance throughout the rpm range
  • V-Block design
  • CNC-machined from high grade aluminum
  • Engineered for improved fuel delivery
  • Polished surfaces for a better seal
  • Expoxy marine type reed material for longer life and better seal
  • Adjustable crankcase volume displacement stuffer plates available
  • Fits 2018' - 2023'  


  • Comes assembled.  Includes gasket

Gizmo Mods YZ 85 Stuffer Reed Valve System 2018’ - 2023’

SKU: SKU-107
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