1. 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

250-500cc piston size

Discussion in '2 Stroke' started by nir, Dec 22, 2013.

  1. nir Husqvarna
    AA Class

    Husqvarna Motorcycle:
    wr300 2010
    Hey, does anybody know where on the cylinder can i find the piston size? thanks
    nir, Dec 22, 2013
    #1

  2. GusG Husqvarna
    A Class

    Husqvarna Motorcycle:
    2009 WR250 Motard.
    I have seen pistons stamped with sizes and/or identification but not cylinders/sleeves/barrels!?!?! :excuseme:
    GusG, Dec 22, 2013
    #2

  3. nir Husqvarna
    AA Class

    Husqvarna Motorcycle:
    wr300 2010
    The wr can come with 3 piston sizes. A, B or C.
    My last bike ,yz250, also came this way and it was writen on the cylinder.
    nir, Dec 23, 2013
    #3

  4. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    It's on the reed valve area on the clutch side.
    MOTORHEAD, Dec 23, 2013
    #4
    454x likes this.

  5. nir Husqvarna
    AA Class

    Husqvarna Motorcycle:
    wr300 2010
    Thanks!!
    nir, Dec 23, 2013
    #5

  6. duey Husqvarna
    A Class

    Husqvarna Motorcycle:
    2009 wr 250
    Other Motorcycles:
    2003 ktm xc 2008 ktm 250 sx
    Curious to what brand of piston replacement used ? Looking to redo top end soon
    duey, Feb 17, 2014
    #6

  7. nir Husqvarna
    AA Class

    Husqvarna Motorcycle:
    wr300 2010
    Vertex piston
    nir, Feb 21, 2014
    #7

  8. mkfox Husqvarna
    A Class

    Location:
    Michigan
    Husqvarna Motorcycle:
    2002 WR250
    Other Motorcycles:
    1973 Greeves Griffon
    My 02 has a "C" in the middle of the reed valve area on the left side. So it came stock with a "C" piston? I assume there will be no letter markings on the current piston as it was rebuild last time years ago by p/o with a Wiseco.
    mkfox, Mar 22, 2014
    #8

  9. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    Yes, WISECO don't do the letters, they only have one size.
    MOTORHEAD, Mar 22, 2014
    #9

  10. juicypips Husqvarna
    Pro Class

    Location:
    gloucestershire
    Husqvarna Motorcycle:
    wr 360. 2002
    Other Motorcycles:
    Gas Gas TxT 300, Yamaha wr250f
    Wossner do sized pistons abc and d so check
    Them out good quality too
    juicypips, Mar 23, 2014
    #10