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  1. #1

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    Which Piston ???

    I have a 2000 GP1200R with a stage 2, I'm in the process of rebuilding the motor, I need new piston, Which piston does everyone recommend Wiseco, Pro X, Stock YAM, Etc .... It a standard 80mm bore. All feed back will be put into consideration. Thank


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  3. #3
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by ctct2118 View Post
    oem
    +1

    best option IMO

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    I know OEM is best but expensive I did all three on mine since I was in there for the one and used Pro-X to have quality and save some money since I am on limited dollars for this toy. When I was asking when I did mine a lot of guys on here recommended it and are using them. Very happy so far and I tell you way more punch you can feel the difference which probably has something to do with the fact I did all three but she goes.

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    Thank for the feed, I was thinking about useing OEM also but cant afford it, so that why I'm thinking about aftermarket piston, I wanted to know what everyone was useing or recommend. I'll probably go with Pro X, How reliable are the Pro X compare to the OEM ?

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    Quote Originally Posted by Speed796 View Post
    Thank for the feed, I was thinking about useing OEM also but cant afford it, so that why I'm thinking about aftermarket piston, I wanted to know what everyone was useing or recommend. I'll probably go with Pro X, How reliable are the Pro X compare to the OEM ?
    ProX work just fine, but if replacing just 1, I would recommend going with OEM... if doing all 3 go with ProX

    the ProX 1200pv piston was made originally for the 800pv, they just use the same for both
    The skirt is a little narrower on the 800 pistons vs the 1200 pistons

  7. #7

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    Thank WFO I'm planning to replace all 3 Piston, So would I get any performance with the Pro X ? Also could I lightly Hone my cylinder if there are very light scratch ?

  8. #8
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    Quote Originally Posted by Speed796 View Post
    Thank WFO I'm planning to replace all 3 Piston, So would I get any performance with the Pro X ? Also could I lightly Hone my cylinder if there are very light scratch ?
    Doubt you will see any gains, but I believe the ProX are a little lighter than OEM

    You need to hone the cylinders with new rings so they will seat properly

  9. #9
    DarkCanuck's Avatar
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    I did all three with Pro-x and like I was saying earlier it has way more jump of the start and top end than it did before the work. I had the middle affected cylinder re plated the other two cylinders and pistons were fine so I just did the pistons, rings etc.

  10. #10

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    Ok I will definitely do so lightly hone the Cylinder and get the Pro X, Thank for the help WFO and Darkcanuck

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