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  1. #1
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    Default Breakdown serial #s???

    can anyone help me breakdown my #s?? engine block reads 447-000115 couldnt find a match with the threads sent.

  2. #2
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    what is the make/model? interesting that the CB450 after 82 and CM450 were 447cc but the engine numbers were PC05 - xxxxxxx sorry just rambling on....
    Last edited by revmike; 12-22-2009 at 2:21 PM.

  3. #3
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    supposedly xs650....just picked up the engine only. cylinders have the 648 stapped on them at the lower base.

  4. #4
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    I'm thinkin' early 1974 TX650A (http://www.650motorcycles.com/XS650yearID.html)

  5. #5
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    yep 74 ish,,,possibly a TX,,the TX an XS 650 is the same mtr basically..

  6. #6
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    Since this post exists gonna hijack it instead of postin a new post with the same question. CB750E-2603370 can't figure if its 76 in da K series or a 77 Super Sport was looking over at timeline on HondaChopper.com thanks and Merry Christmas

  7. #7
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    probobly a K,,theres no F after the cb750E

  8. #8
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    1976 CB750K. http://www.sohc4.net/index.php?q=node/86

    The F series engine numbers start with CB750FE-.

  9. #9
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    Thanks for the input fellas appreciate it

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