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  1. #1

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    89mm Bored Cyclinders?

    Can you use a milled stock head with 89mm cyclinder on a 1300?
    Thanks


  2. #2
    ABBOTT's Avatar
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    YES...that is exactly what i run on my single pipe.

    Stock head milled to yield 168/170/168 compression. I still run 93 octane pump gas.

  3. #3

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    Quote Originally Posted by ABBOTT View Post
    YES...that is exactly what i run on my single pipe.

    Stock head milled to yield 168/170/168 compression. I still run 93 octane pump gas.
    my head is only mill to 150/150/150. Can that work?

  4. #4
    ABBOTT's Avatar
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    GOOD GOSH YEA!! That is more than fine.

  5. #5

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    Quote Originally Posted by ABBOTT View Post
    GOOD GOSH YEA!! That is more than fine.
    Thanks

  6. #6
    Flying Scotsman's Avatar
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    When they mill the head they cut the chambers big enough for the pistons I would think the stock chambers are smaller than 89mm diamiter.
    SCOTT.........

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