Home Forums 2-Cycle Racing Pop-Off Pressure / Fulcrum Height

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    • #35298
      Brad Alan


      Newb here.  I’m interested to know where I should set the pop-off pressure for a Sr. Can & Sr. Y-Pipe for a Walbro WB3A?  Also, what how high should the fulcrum be?  I understand when measuring the fulcrum the gasket must be on.

      Thanks for your help!

    • #35446
      Walt Gifford

      10 psi and .050″ below the oem gasket.


      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

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