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Thread: Problem with my "frankenstein" YZ - tri z 250

  1. #1
    Join Date
    Dec 2015
    Location
    Mexicali B.C. Mexico
    --
    3

    Problem with my "frankenstein" YZ - tri z 250

    I have a motor YZ 250 s/n 56A00 w/ Crank starter and cylinder of tri z and a connecting rod 3R5.
    And i buyed a yz 250 piston but it's not compatible with my motor and with a piston of triz it's the same.

    Piston excelled
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    Connecting rod
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    my question is, which piston is that I use?


    Thanks in advance

  2. #2
    Join Date
    Apr 2014
    Location
    Edmond, KS
    --
    2,591
    You probably have to use the piston for the Tri-z. It is possible that the wrist pin won't fit the YZ rod. I'm not sure, but it's something to be aware of.

  3. #3
    Join Date
    Feb 2011
    Location
    Surprise, AZ
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    2,428
    Give us the years of all parts used.
    Email- onformula1@hotmail.com Rebuilt, Revalved, custom springs, lowering, forks & shocks, Custom Suspension, all brands, 2-3-4 wheeler's- PM or Email with questions.

    ***Check out my album for cool pictures*** http://www.3wheelerworld.com/album.php?albumid=2527

    As always- Everything I post is IMHO.

  4. #4
    Join Date
    Jul 2010
    Location
    glendive, montana
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    1,822
    I'm going to guess your rod is too long, correct part # for a z rod is 24Y-11651-01-00
    rectum nothin damn near killed them
    feel free to leave feed back for me here. http://www.3wheelerworld.com/showthr...06#post1119306

  5. #5
    Join Date
    Dec 2015
    Location
    Mexicali B.C. Mexico
    --
    3
    A colleague told me that a possible solution would be to put a spacer gasket between transmission and about 1/2 inch cylinder that is what stands out the piston
    You think it would be correct?

    Quote Originally Posted by onformula1 View Post
    Give us the years of all parts used.
    and the year is 1985 the part of yz and triz

  6. #6
    Join Date
    Nov 2006
    Location
    southern oregon
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    2,338
    Quote Originally Posted by Micrko View Post
    A colleague told me that a possible solution would be to put a spacer gasket between transmission and cylinder... You think it would be correct?
    Yes. Unless you want to buy and install a new rod.
    2-stroke lover

  7. #7
    Join Date
    Dec 2015
    Location
    Mexicali B.C. Mexico
    --
    3
    Quote Originally Posted by cr480r View Post
    Yes. Unless you want to buy and install a new rod.
    Thanks for the reply I'll try

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