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Thread: Yz 250 piston specs vs tri-z250

  1. 11-06-2008, 04:40 PM #1
    NEWDUCK
    NEWDUCK is offline New to the board Arm chair racerNew to the board
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    Yz 250 piston specs vs tri-z250

    Since I have torn down my tri-z I called wiseco and asked them where the piston came from because the tri-z piston numbers they had didnt match my numbers. The piston is for a yz 250 83-87. I asked them what the diffrence was and the wrist pin sits .015 higher and the top of the dome is .055 higher than a tri-z piston. So just incase any body was wondering the diffrence between the two if any there you go.
    1985 tri-z pretty much stock
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  2. 11-06-2008, 04:49 PM #2
    DeePa
    DeePa is offline Power User Got the holeshot
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    i run a prox yz piston in my z without any issues
    1986 Tri-z
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  3. 11-06-2008, 06:06 PM #3
    ATC-Eric's Avatar
    ATC-Eric
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    The Wiseco pro-lite is lighter then the Pro-X ( by a decent amount). Cant remember exactly how much, but Ive measured it before................
    My feedback: http://www.3wheelerworld.com/showthr...k-for-ATC-Eric

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  4. 11-07-2008, 05:01 PM #4
    03 ORANGE SHEE's Avatar
    03 ORANGE SHEE
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    Quote Originally Posted by ATC-Eric View Post
    The Wiseco pro-lite is lighter then the Pro-X ( by a decent amount). Cant remember exactly how much, but Ive measured it before................
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  5. 11-07-2008, 05:06 PM #5
    Blown 331's Avatar
    Blown 331
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    Good info, I need a piston for my TRI-Z.
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