TSB on 1980 engine knock at cruising speed

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  • BA80
    Doctor of XSology
    • Oct 2010
    • 9980
    • Tulsa, Ok

    #1

    TSB on 1980 engine knock at cruising speed

    Someone posted a TSB about a detonation issue in the 1980 engine at cruising speeds a few years back. I searched for it but couldn't find it

    Anyone know how to access it?
    Greg

    Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

    ― Albert Einstein

    80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

    The list changes.
  • JeffH
    XS-XJ Guru
    • Dec 2011
    • 1566
    • Atlanta, GA.

    #2
    Greg,

    This is all I could find. I think there was a thread more recent but maybe not. Time Flies
    These touch on the subject. Maybe one of these is the one you were looking for.





    I will look more for any TSB tomorrow.

    Jeff
    78' XS1100 E
    78' XS1100 E
    78' XS1100 E

    '73 Norton 850 Commando
    '99 Triumph Sprint ST
    '02 G-Wing GL1800

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    • Radioguylogs
      XS-XJ Guru
      • Nov 2012
      • 2053
      • Presque Isle, MI

      #3
      Found it in at least one place

      It's in this post:



      -Mike
      _________
      '79 XS1100SF 20k miles
      '80 XS1100SG 44k miles
      '81 XS1100H Venturer 35k miles
      '79 XS750SF 17k miles
      '85 Honda V65 Magna ~7k miles
      '84 Honda V65 Magna 48k miles (parts bike)
      '86 Yamaha VMAX 9k miles

      Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65

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      • bikerphil
        Master of XSology
        • Jan 2008
        • 8766
        • South Flori-DUH

        #4
        If you put a restrictor in the vacuum line it may lessen or eliminate the noise.
        2H7 (79) owned since '89
        3H3 owned since '06

        07 Triumph Tiger 1050

        "If it ain't broke, modify it"

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