146cc big bore kit for yx125

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146cc big bore kit for yx125

This is a discussion on 146cc big bore kit for yx125 within the Chinese/Import Minis - General Discussion forums, part of the General Talk category; Wanted to buy the 146cc big bore kit for my yx125. Looking for input from others who have done this. Is it worth it or ...

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Thread: 146cc big bore kit for yx125

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    146cc big bore kit for yx125

    Wanted to buy the 146cc big bore kit for my yx125. Looking for input from others who have done this. Is it worth it or should I save the money and buy a bigger motor. Was looking at the kit from tbolt but also heard there's one from sgr?
    Thanks

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    T Bolt USA's Avatar

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    You going to need to run a big valve head in the YX125 since the only pistons availible are for that head (not the stock small valve YX125 heads)
    Click image for larger version. 

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    Ok is anything else required or does that kit have everything I need?
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    T Bolt USA's Avatar

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    Quote Originally Posted by String View Post
    Ok is anything else required or does that kit have everything I need?
    Kinda wide open question ...
    The kit includes
    New big valve head
    Cylinder
    piston
    rings
    Pin
    Clips
    Head and base gaskets

    You DONT re-use the original O rings between the head / base / cylinder
    You might need a few gaskets on the head at the cam cover and top plate if they tear
    We have a full gasket set listed

    You should consider a Race cam too
    and possibly a VM26 606 carb ...
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    Ok cool. I appreciate your help. What would be a compatible race cam?

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