1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

Reed Valve Piston

Discussion in 'Vintage/Left Kickers' started by triple D, Jan 12, 2019 at 3:35 PM.

  1. triple D Husqvarna
    A Class

    Husqvarna Motorcycle:
    1972 wr250/73 400/76 175/78 390/77
    Other Motorcycles:
    bultaco/yamaha/kaw
    can a piston with holes for a reed valve be used in a motor with out a reed valve ? thanks
  2. SteveJ Husqvarna
    AA Class

    Location:
    New Mexico
    Husqvarna Motorcycle:
    1970 400 Cross, 1983 500 CR
    Other Motorcycles:
    84 Honda CR500R, 81 Honda CBX,
    The reed valves have to be there to prevent crankcase pressure from kicking back up through the intake/ carburetor during piston down stroke. So, no, it will not work.