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1st over with 2nd rings?

Discussion in 'The Garage' started by jakeroper, Dec 2, 2019 at 6:01 PM.

  1. jakeroper

    jakeroper XS650 Member

    Hello gentlemen,
    I’ve recently given my cylinders a hone and found they are going to need to be bored out as they have rust pit marks.
    The pistons are 1st over and I have new 1st over rings and I’m wondering if I will need to buy 2nd over rings and pistons or can I just buy 2nd over rings if the pistons/cylinder are in spec
    Thanks for getting back to me guys!!

  2. Jim

    Jim Beyond the edge, is the unknown. Here be Dragons Top Contributor XS650.com Supporter

    Well if you get it bored, the pistons will no longer be in spec. Short answer... you'll need both the pistons and rings.

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