engine knocking at low rpm

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  • CaptainCook
    • Feb 2026

    #1

    engine knocking at low rpm

    Just bought a 1982 GS650GLZ. After the motor warms up I get a fairly loud knocking noise from idle up to about 1600rpm. After that it disappears. Bike has 44000kms on it.

    Any suggestions?
  • posplayr
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    • Dec 2007
    • 23673
    • Tucson Az

    #2
    8v have cam knocking issues. I have no experience with yh but it is often discussed. Cam end play.

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