Tachometer Gear Installation Advice

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04 Oct 2022 10:40 #875008 by ShaneDude
Tachometer Gear Installation Advice was created by ShaneDude
I bought this used and in great condition tachometer gear for my 1977 KZ750 TWIN (B1).

Any advice on taking out the old one and putting this one in? I know I have to take off the cylinder head cover, but is there anything else I should know?

Thanks!

Below is the part I got.
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    04 Oct 2022 10:51 #875009 by Warren3200gt
    Replied by Warren3200gt on topic Tachometer Gear Installation Advice
    Unless it's different from a 650 one you don't need to remove head, cam cover or anying other than the lock bracket.
    Undo the bracket retaining screw. 
    Slide out the old one and slide in the new one making sure the teeth are are aligned. Replace the bracket and screw. Job done. 


    Z1000J2 somewhat modified!

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    04 Oct 2022 11:00 #875010 by ShaneDude
    Replied by ShaneDude on topic Tachometer Gear Installation Advice
    Thanks for responding.

    So, when I take off the tach cable from the engine block, Im looking at the part the cable inserts into. I dont see a nut. Here is a diagram. Can you further explain?

     
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    04 Oct 2022 11:27 - 04 Oct 2022 11:28 #875012 by Warren3200gt
    Replied by Warren3200gt on topic Tachometer Gear Installation Advice
    This is a 650 diagram. It doesn't fit in the cam cover it fits in the head.


    Z1000J2 somewhat modified!

  • Last edit: 04 Oct 2022 11:28 by Warren3200gt.

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    04 Oct 2022 11:44 - 04 Oct 2022 11:50 #875014 by ShaneDude
    Replied by ShaneDude on topic Tachometer Gear Installation Advice
    the KZ750 is completely different. I found the answer.  When I googled it, it led me right back to the forum: You have to pull it out prob with needle nose or something. See below:

    kzrider.com/forum/2-engine/607261-tach-d...-for-1980-kz750-twin

     
  • Last edit: 04 Oct 2022 11:50 by ShaneDude.

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    04 Oct 2022 13:16 #875019 by Nessism

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    • Scirocco
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    • Never change a running system
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    04 Oct 2022 14:18 - 04 Oct 2022 14:21 #875025 by Scirocco
    Replied by Scirocco on topic Tachometer Gear Installation Advice
    You have to remove the valve cover the to push out the gear.
    Don´t forget to reset the cam chain tensioner before you put the valve cover on or you overtighten and break the cam chain!

     
     

    A cut model of the KZ 750 twin engine

    www.z750twin.de/schnittmotor.htm

     
  • Last edit: 04 Oct 2022 14:21 by Scirocco.

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    04 Oct 2022 14:49 - 04 Oct 2022 14:56 #875026 by ShaneDude
    Replied by ShaneDude on topic Tachometer Gear Installation Advice

    You have to remove the valve cover the to push out the gear.
    Don´t forget to reset the cam chain tensioner before you put the valve cover on or you overtighten and break the cam chain!




     
    A friend whose Dad has my same bike, reached out to me today by phone and said you pull it out with needle nose and push it back in. He said he changed his two years ago. He said you dont have to take off the valve cover. His steps were:

    1. pulled  out the gear with a vise needle nose
    2. changed the seals
    3. pushed it back in
    4. job done

    thats exactly what he told me.
    Thanks.
    Last edit: 04 Oct 2022 14:56 by ShaneDude.

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