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

250-500cc wr 250 piston or power valve problem?

Discussion in '2 Stroke' started by bombastikas, Nov 4, 2013.

  1. bombastikas Husqvarna

    Husqvarna Motorcycle:
    wr 250
    Other Motorcycles:
    not
    My WR 250 runs strong ,compression good, but today rip rinding in the forest. Remove cylinder I see damage piston and power valve.
    Piston great shape, piston rings 0.2mm clearance.
    Maybe power valve hit piston?
    Maybe someone had a problem?
    Upload my damage piston and power valve photos :)

    Attached Files:

    bombastikas, Nov 4, 2013
    #1

  2. fredd Husqvarna
    AA Class

    Location:
    PUERTO RICO
    Husqvarna Motorcycle:
    2016 kx 450f
    Other Motorcycles:
    1995 chopper
    that piston need to be replace.:eek:
    fredd, Nov 4, 2013
    #2

  3. bombastikas Husqvarna

    Husqvarna Motorcycle:
    wr 250
    Other Motorcycles:
    not
    I know that need now change piston because he damage, but i say he good shape because piston and cilinder clearance is good, rings clearance 0.2mm , manual says limit is 0.6mm.

    I want to know why it happened . Or power valve hit piston, or this piston fail ?
    bombastikas, Nov 4, 2013
    #3

  4. 454x Husqvarna
    Pro Class

    Location:
    Dunnigan,Ca.
    Husqvarna Motorcycle:
    2012 CR165 w/36mm lectron.
    Other Motorcycles:
    2014 BETA 300RR w/36mm lectron.
    power valve out of adjustment.
    454x, Nov 4, 2013
    #4

  5. bombastikas Husqvarna

    Husqvarna Motorcycle:
    wr 250
    Other Motorcycles:
    not
    Interesting, two season no problrem ,now rip. Can you advise where to look power valve problem ? thanks
    bombastikas, Nov 4, 2013
    #5