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Thread: Clutch discs

  1. #31
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    Quote Originally Posted by zviadi View Post
    After installation Barnett kit was difficult to find neutral.
    Who else are the symptoms and what to do?
    One thing to do is blead the clutch lines again to ensure all air in the lines is removed. Don't forget there is a bleeder fitting located by the hand lever that needs to be blead also. Bleeding both fittings ensures the hydrolic fluid is not hindered with air bubbles and so the actuator piston can move through it's full range to disengage the plates.

    Also, as the disks wear in and become thinner the clutch should disengage easier. It may just need to be ridden for a while to get those disks and plates bedded in flat.

  2. #32
    EBRforum Junkie zviadi's Avatar
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    Clutch bleeded - problem still exists. I noticed that when i press the clutch lever is not open properly, so do not find neutral when bike stand.


    Possible causes:
    1. Flows master cylinder.
    2. Flows slave cylinder.
    3. The thickness of barnett kit longer than stock.
    I'm leaning towards the third option.
    EBR 1190 RX

  3. #33
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    Quote Originally Posted by zviadi View Post
    Clutch bleeded - problem still exists. I noticed that when i press the clutch lever is not open properly, so do not find neutral when bike stand.


    Possible causes:
    1. Flows master cylinder.
    2. Flows slave cylinder.
    3. The thickness of barnett kit longer than stock.
    I'm leaning towards the third option.
    My bike doesn't always find neutral the easiest with stock disks. While stopped and not rolling it is harder to find, shifting up and down several times. Until the plates wear in, shift to neutral while rolling to a stop.

  4. #34
    EBRforum Junkie zviadi's Avatar
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    At EBR I have never had a problem finding neutral.

    I was thinking ...
    I had the Aprilia Mille. When she ended the clutch, it was difficult to find neutral too. Maybe thickness Barnett friction plates contrary - thinner than stock?

    Photos friction plates:

    Click image for larger version. 

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    Unfortunately, I forgot to measure the thickness...
    Last edited by zviadi; 10-18-2015 at 12:59 AM.
    EBR 1190 RX

  5. #35
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    A spare set of used plates I have measures 46.56mm total stack height. They are dry and have been scuffed with a scotch bright pad so the height may be a bit big. The 10 steel plates measure 14.88mm total and the 9 fiber plates measure 31.60mm total. I could not find a spec for the height in the electronic service manual. Maybe it is in the dealer's service manual, and some other member can post that for everyone's benefit.

  6. #36
    EBRforum Junkie zviadi's Avatar
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    Quote Originally Posted by buell-fan View Post
    A spare set of used plates I have measures 46.56mm total stack height.
    For Mille minimum stack height is 46.3 mm.


    One of stock metal discs, which put in the basket first, has a notch (top on the picture):

    Click image for larger version. 

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    Metal discs Barnett such notches don't have. Maybe because of that notch clutch is fully opened?
    Why this notch?
    That is written in the manual of Rotax V990NG:

    Click image for larger version. 

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    Last edited by zviadi; 10-19-2015 at 03:13 PM.
    EBR 1190 RX

  7. #37
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    That notch only gives reference that the disk goes in first. That is stamped steel and the stamping side (rounded edge) goes into the hub and the sharp corner faces up to the first fiber. The regular steel disks go in opposite, so the rounded edge is up and the sharp corners face down.

  8. #38
    EBRforum Junkie zviadi's Avatar
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    Just watched all metal discs, including disc with notch - no different from each other, no rounded edges. The disk with notch a little thicker. Perhaps because of the wear of other discs.
    EBR 1190 RX

  9. #39
    EBRforum Junkie zviadi's Avatar
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    After 5000 miles - again it is time to change the clutch. Neutral does not find, even on the move. When the clutch lever is trying to ride the bike forward. The circuit was bleeded - does not help. Tomorrow ordering Barnett.

    I have no lucky with the bike in this year)))
    EBR 1190 RX

  10. #40
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    I've never heard of one person having so many issues with a bike before. It isn't the bike that is the issue, zviadi. Its the owner.

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