Author Shift support assist  (Read 4359 times)

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  • Offline Smithy404   gb

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    Offline Smithy404

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    Shift support assist
    on: Feb 17, 2023, 10.18 pm
    Feb 17, 2023, 10.18 pm
    Learning how to navigate and post on this forum so I can maybe be of help to others and learn more about the Z9. Iíve already replied to a post by user echo948 regarding sloppy gear changes/false neutrals. Old post so I didnít get a reply but still found some useful information I.e lowering shift lever for easier changes.

    Anyway, in that post I said I had ordered a part from a company called Racetorx who engineer a part called and it is a bit of a mouthful ďshift shaft supportĒ.

    Part arrived today so I got to work installing it.



    It turns out I didnít actually have to remove the sprocket cover entirely. However Iím glad I did because my sprocket and chain were covered in an unholy amount of gunk. Honestly, it didnít look this clean when I removed it. A liberal amount of chain cleaner and prodding with the straight end of a chain cleaning brush and things were looking a lot better.

    If you do decide to take it off thereís 4 bolts in total, I donít know what size they are but two are longer so be sure to remember where they go.



    The Racetorx part is essentially a billet part which eliminates lateral free play between the shift control arm/rod and the shift shaft. There is a bearing mechanism inside that needs to be greased (sachet of grease is provided) you will need to replace the two lower bolts with the ones provided.

    If you decide to do this mod or just take your sprocket cover off for a thorough clean/sprocket change then remember not to over torque the bolts which is very easily done. I used loctite and torqued to the recommended 8.7nm.

    Shifting does feel a lot firmer and gear engagement is definitely more positive. Canít say much about false neutrals as I havenít rode the bike enough times since install.





  • Offline zed9   us

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    Offline zed9

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    Re: Shift support assist
    Reply #1 on: Feb 18, 2023, 04.06 pm
    Feb 18, 2023, 04.06 pm
    Nice, 👍
    Is that an oversized front sprocket in their?

  • Offline Smithy404   gb

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    Offline Smithy404

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    Re: Shift support assist
    Reply #2 on: Feb 18, 2023, 04.32 pm
    Feb 18, 2023, 04.32 pm
    Yes +1 tooth from stock

  • Offline zed9   us

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    Offline zed9

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    Re: Shift support assist
    Reply #3 on: Feb 18, 2023, 04.38 pm
    Feb 18, 2023, 04.38 pm
    *Originally Posted by Smithy404 [+]
    Yes +1 tooth from stock
    That thing barely fits. Thereís certainly no room for two up.
    Itís pretty amazing, when you lay one gear on top of the other, how much bigger the diameter one extra tooth makes.

  • Offline Smithy404   gb

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    • #4

    Offline Smithy404

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    Re: Shift support assist
    Reply #4 on: Feb 18, 2023, 06.51 pm
    Feb 18, 2023, 06.51 pm
    Unfortunately I didnít own the bike stock because my dumbass couldnít wait 6 months for a new bike. Ended up paying more than what the bike is new but it did come with goodies.

    So with the +1 sprocket at the front I really donít know what Iím missing because I have nothing to compare it to. 🤷🏻‍♂️ bike still feels plenty quick.

    I was worried about the gearbox because I was hitting a lot of false neutrals but that issue is sorted after adjusting shift lever to a lower position.

  • Offline zed9   us

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    Offline zed9

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    Re: Shift support assist
    Reply #5 on: Feb 18, 2023, 07.05 pm
    Feb 18, 2023, 07.05 pm
    *Originally Posted by Smithy404 [+]
    Unfortunately I didnít own the bike stock because my dumbass couldnít wait 6 months for a new bike. Ended up paying more than what the bike is new but it did come with goodies.

    So with the +1 sprocket at the front I really donít know what Iím missing because I have nothing to compare it to. 🤷🏻‍♂️ bike still feels plenty quick.

    I was worried about the gearbox because I was hitting a lot of false neutrals but that issue is sorted after adjusting shift lever to a lower position.
    Shifting problems can arise from a poorly adjust clutch cable, which a lot of these had coming from the factory, or the shift lever not set at the right height for your boot. So check those because the z900 is a nice shifting bike normally.

    As far as the dumbass goesÖ Let he who is not guilty cast the first stone. When you need a bike, you need a bike now. Especially if your going to miss a riding season. Weíve all been there. 🍻

  • Offline Smithy404   gb

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    Offline Smithy404

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    Re: Shift support assist
    Reply #6 on: Feb 18, 2023, 10.23 pm
    Feb 18, 2023, 10.23 pm
    Surprisingly clutch adjustment was actually in spec but the previous owner did install aftermarket ASV levers. I fitted rearsets and Iím 50% that caused the problem, adjusted shift lever and added the racetorx shaft support and sheís shifting as sweet as a nut now.

    Touchť brother, when you need a bike you need a bike. I can definitely resonate with that. Spring is on the horizon so happy riding seasons ahead 😎

  • Offline zed9   us

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    Offline zed9

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    Re: Shift support assist
    Reply #7 on: Feb 19, 2023, 01.58 am
    Feb 19, 2023, 01.58 am
    Well, youíre going to love the z900. Itís got plenty. 👍

     


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