Need help to identify reverse CB77 speedo drive gear
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  1. #1
    Senior Member Carnivorous Chicken's Avatar
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    Need help to identify reverse CB77 speedo drive gear

    Hi All -- as the title suggests, I need to verify that this is a speedo drive for an early CB77, with the reverse speedo direction. I picked up the speedo and drive separately. And I had the drive labelled and in a bag for the longest time, then got it out and was going to mount it on a project, but sold the project. So I am left not holding the bag, as it were. Can anyone verify this is the reverse speedo drive? Thanks in advance.



    1965 CL160 project
    1966 CB77 project
    1968 CL175 sloper
    1969 CB160
    1972 Yamaha CS3 (sold!)
    1973 CB350F (Red)
    1973 CB350F (Green)
    1973 CB350F (green) project
    1975 CB400F engine in a 1973 350F frame
    1975 CB550K
    1977 CB400F
    Various jumbled bits and pieces...

  2. #2
    Senior Member pemdoc65's Avatar
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    Shepherdsville, KY
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    The easiest way to tell is to turn the center hub and watch which way the tang turns. If you turn the hub in the direction that it would rotate if mounted, the tang (that goes into the cable) should rotate counterclockwise if it is the correct unit for your speedo.
    Last edited by pemdoc65; 05-15-2018 at 03:53 PM.
    1965 CB450 K0
    1966 CB450 K0 (current project)
    1964 CB77
    1965 CB77
    1964 CB72 (upcoming project)
    1965 CB72 (current project)
    1964 CA77
    1972 CB350 K4
    1960 Triumph TR6 Trophy (always looking for parts to finish this one...)
    1980 CB750K
    1982 XL250R

  3. #3
    Senior Member Carnivorous Chicken's Avatar
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    Quote Originally Posted by pemdoc65 View Post
    The easiest way to tell is to turn the center hub and watch which way the tang turns. If you turn the hub in the direction that it would rotate if mounted, the tang (that goes into the cable) should rotate counterclockwise if it is the correct unit for your speedo.
    Thanks -- but unfortunately it's in AZ, and I'm in CDMX... hoping for a visual confirmation...
    1965 CL160 project
    1966 CB77 project
    1968 CL175 sloper
    1969 CB160
    1972 Yamaha CS3 (sold!)
    1973 CB350F (Red)
    1973 CB350F (Green)
    1973 CB350F (green) project
    1975 CB400F engine in a 1973 350F frame
    1975 CB550K
    1977 CB400F
    Various jumbled bits and pieces...

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