xr70r to 125 maybe? also jetting question

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xr70r to 125 maybe? also jetting question

This is a discussion on xr70r to 125 maybe? also jetting question within the Honda CRF70 forums, part of the General Talk category; Got a Jetmoto 125 engine from a friend. will the top end from the 125 fit on the bottom of the xr70? also, I put ...

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  1. #1
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    xr70r to 125 maybe? also jetting question

    Got a Jetmoto 125 engine from a friend. will the top end from the 125 fit on the bottom of the xr70?

    also, I put a foam filter on the xr70, stock everything else. should i rejet or lower or raise the needle? bike is slow to rev and lacks power at low rpms.

    Thanks for the help!

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    DSR BLACK DEATH's Avatar

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    Why not just swap the entire engine into your xr70?
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    I might. The friend I got it from wants some parts of the bottom end, so I was hoping it would be easy to swap the top end.

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