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    Setscrew valve adjustments

    I have been on and off this forum for over 20 years. I want to know which year the gs bikes changed from shims to setscrew locknut valve adjustment. I will buy a 750,850, 1000 or 1100 depending on that. Was it 82 and newer?

    #2
    You can tell by the shape of the valve civer end caps:
    Round-8 valve- shim on bucket.
    Rectangular -16 valve- screw adjusters.

    750 changed in 1980 except for the odd non-uS shaft drive model.

    850 are all shaft drive and all 8 valve.

    1000 are all 8 valve (I think)

    1100. Depends if shaft drive or not.

    If in doubt, look at the end caps.

    Links​​​

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