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  1. #1

    XL760 increase in piston size. Need to change carb settings?

    Had a broken piston ring so for a rebuild I did a piston / cylinder upgrade from 85 to 86.5mm (also corresponding mod to head). U think the high end adjust, or anywhere else, will need to be richened for the corresponding increase in cylinder volume? Or is it like handgrenades and this increase will have minimal impact and be close enough. It was fine before the upgrade. Thanks.


  2. #2

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    Quote Originally Posted by viperbob View Post
    Had a broken piston ring so for a rebuild I did a piston / cylinder upgrade from 85 to 86.5mm (also corresponding mod to head). U think the high end adjust, or anywhere else, will need to be richened for the corresponding increase in cylinder volume? Or is it like handgrenades and this increase will have minimal impact and be close enough. It was fine before the upgrade. Thanks.
    What was done to head?

  3. #3
    Head was just opened on sides(has new head from SBT just to work with this application. Not performance mod or increase in compression) to make smooth transition into head from larger diameter pistons

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