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Changing the Clutch Fluid

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Old 03-29-2005, 7:28 PM
  #1
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Changing the Clutch Fluid

Okay, this may seem like a waste of bandwidth for some on this board, but I need a little assistance.

While I was putting on the new front sproket, I decided to change the clutch fluid as it was black. I have never had to deal with a hydro clutch before but it looks a lot like brake lines so I figured it couldn't be too bad. Well my question is this...

I can't seem to get the right pressure back into the system. I've bled the system a few times, but it feels like there is always air in it. My lever is so lose (How lose is it?) it seems like the clutch doesn't engage at all. Is there something I'm missing in the procedure? Do you pump the lever and continue to fill the system while still bleeding the air?

Thanks

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Old 03-29-2005, 7:40 PM
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Re: Changing the Clutch Fluid

Honestly, somehow I've never had to do it on a bike yet.

But on cars, hydro clutches can be a real bitch.

Just keep going, hydraulic systems are about as easy as they come. You have air in it, you need to get it out.

Sometimes taking a screwdriver handle and tapping around things, starting at the bottom, can help get the air bubbles moving.
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Old 03-29-2005, 8:50 PM
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Re: Changing the Clutch Fluid

I've bled my Ducati clutch. I had to use a MityVac to get things started. Then I bled it with the same procedure as brakes. From what I understand, hydraulic clutches are a pain to bleed. Keep at it, you've probably got air somewhere.
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Old 03-29-2005, 8:54 PM
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Re: Changing the Clutch Fluid

You bleed it just like brakes. Just get all the old fluid out of the master res. and refill it with new before you start. When you see clean fluid at the bleeder, your done. Keep trying it. Remember, the lever always comes to the grip.
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Old 03-29-2005, 10:19 PM
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Re: Changing the Clutch Fluid

Like others have said... I used a zip tie holding the handle in while I taped the lines. Keep at it, eventually it will go away.. Just make sure to keep refilling that tiny ass res... I almost made mine get air back into the system cause I wasnt paying attention.

Good Luck
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Old 03-30-2005, 12:57 AM
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Re: Changing the Clutch Fluid

Try this:
Clutch speed bleeding
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Old 03-30-2005, 11:37 AM
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Re: Changing the Clutch Fluid

Thanks guys, I'll try the various things and hope I can figure this out. Now I know why I like cable systems
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Old 04-08-2005, 10:42 PM
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Re: Changing the Clutch Fluid

As Rob said. I have a big 60ml catheder syringe with a silicone line, drop that into the resiovoir and suck all the fluid out BUT leavea tad in the bottom. If you dont introduce air into the system (ie never let it go all the way down when bleeding) you wont have a problem . I dont see what the fuss is .... hydraulic brakes are EASY to bleed .
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