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  1. #1

    Do i use washers w/ pro-x pistons???

    W/ my new pistons there was not any washers supplied. do i need to use the ones from my stock pistons or do i not need to use any at all.

    I am refering to the washer that goes between the wrist pin and inside wall of the piston.

    Thanks


  2. #2
    only my oem had the washers my pro-x and WSM pistons do not use them

  3. #3
    Happily Self-Employed WFO's Avatar
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    I always use the washers with OE and Pro-X

  4. #4
    Duke's Avatar
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    If its a 65U motor with Pro-X pistons the washers won't fit. If its a PV motor use the washers.

  5. #5
    txgp1300r's Avatar
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    on my 1300 pv motor w/ pro-x I used the washers

  6. #6
    Thank you!!!

  7. #7
    TRIPLE PIPES ARE 2-STROKE TURBOS allcool's Avatar
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    Yes, use the locating washers.

    They help keep the rod centered on the big end bearing and 'locate' the pin bearing.

    I have been thru this on other motors.

    Not running the pin bearing locating washers will eventually damage the lower end rod bearing.

    Keep in mind damage won't happen quickly, but will happen eventually. Without washers the rod now can move back and forth another .060" on its bearing not staying centered, causing side loads on the bearing...ng.

    allcool
    Last edited by allcool; 06-30-2008 at 08:45 PM.

  8. #8
    Greenhulk Grasshopah (DRC) HallPass's Avatar
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    i have washers!

  9. #9
    BahamasGPR's Avatar
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    I use the wider kawasaki bearings with no washers they are the same width as the standard oem bearing with washers. I've seen washers go thin and damage things.

  10. #10
    ....back from the dead.... J-ME's Avatar
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    Exactly, it all depends what wrist pin bearings you use. Most aftermarket w'pin bearings do not require washers, while most OE except the Kawi/650 require washers.

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