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

250-500cc Pic of my WR250 Piston

Discussion in '2 Stroke' started by letitsnow, Dec 30, 2010.

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  1. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    Wiseco's do heat up and expand somewhat unevenly, but in stock engines, they do just fine. In heavily ported or very large bores, like 500cc, I like to add another .5 to 1 thousandths clearance (in any boreable barrel) to make sure the piston will not stick on break-in. other than that, Wiseco pistons hold up really well for a long time. I use them in all my bikes.
    Dirtdame, Jan 15, 2011
    #21

  2. Xcuvator Husqvarna
    Pro Class

    Location:
    Scholls Oregon
    Husqvarna Motorcycle:
    TE450,610 WB165,WR250 WR360 & XC430
    Other Motorcycles:
    yes
    I saw those ProX pistons for the first time the other day. Are they an "Asian" product?
    Xcuvator, Jan 15, 2011
    #22

  3. Xcuvator Husqvarna
    Pro Class

    Location:
    Scholls Oregon
    Husqvarna Motorcycle:
    TE450,610 WB165,WR250 WR360 & XC430
    Other Motorcycles:
    yes
    I was just over talking to Ron at RB designs yesterday. We started taliking about pistons and he believes Wisecos aren't finished quite as good as the once were. He feels they don't do as much pickiling/stress relieving, so the first few quick heat cycles are more important than ever.
    Xcuvator, Jan 15, 2011
    #23

  4. letitsnow Husqvarna
    AA Class

    Location:
    mn
    Husqvarna Motorcycle:
    FC250
    Other Motorcycles:
    CBR600F4
    Thanks for the info. I will take my time doing the heat cycles.
    letitsnow, Jan 15, 2011
    #24

  5. rancher1 Husqvarna
    Pro Class

    Location:
    WA
    The pro-x piston I bought was ugly and I did not want to put it in an engine of mine. I would rather use the wiseco piston.
    rancher1, Jan 16, 2011
    #25
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