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GS750 engine serial #s

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    GS750 engine serial #s

    The search feature is broken so if there is a topic on this already, can someone post it?

    I have a 1980 GS750L with motor # GS75X-103388. This bike came with a spare motor GS75X-163550. I'm trying to determine the year of the second motor.

    Is there a serial number range chart somewhere showing S/Ns by year?

    #2
    why worry?
    how many valve cover bolts does it have?
    if 20 then its an 80-81.
    if 24 its an 82.
    i would assume the larger the number the newer the engine.

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      #3
      Originally posted by blowerbike View Post
      why worry?
      'cuz someday I'll need parts!

      so based on the above, the second motor is an '82 (24 bolts)
      Last edited by Guest; 12-23-2012, 04:45 PM.

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        #4
        Originally posted by Kyler View Post
        'cuz someday I'll need parts!

        so based on the above, the second motor is an '82 (24 bolts)
        ok parts are all the same except for the vc gasket.
        there you have it....................

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          #5
          Plus i answered your question grasshoppa!
          It is an "82"

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