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Old Jun 22nd 2017, 08:01 AM   #1
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Weird clutch issue

Hey all,

Apologies in advance if this thread is not in the right spot.

Hopped on the bike this morning and, for the second time, the clutch lever went practically all the way in to the bar before I hit the friction and full disengagement zones. The normal feel and engagement zone comes back about 5 minutes of riding.

I did some googling and found that others have also had different clutch feel due to master/slave cylinder issues. If anyone has had this happen to them and knows the fix, please let me know. Thanks!

Stowski
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Old Jun 22nd 2017, 08:55 AM   #2
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So many theories about how to "fix" this issue.

I've had it ever since I got my bike and just got used to bleeding the clutch every other ride. It sucks but that's how it goes with these bikes.

Maybe you get lucky and an aftermarket, or even a new OEM, slave or master or even the bleeders would do the trick but I wouldn't keep my hopes too high.

In a few words, yes, it is normal and to fix it just give it a quick bleed at the master and you will see a few bubbles coming out and you will be good for a few hundred miles until it happens again.

Good luck!
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Old Jun 22nd 2017, 09:18 AM   #3
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Installed the Oberon slave cylinder and haven't hadn't to bleed since. Relatively cheap fix.
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Old Jun 22nd 2017, 10:19 AM   #4
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Thanks for the advice, most appreciated! Rogue, were you able to install the new slave by yourself?

I kept digging and found a write-up in an 1199 forum where a guy used some sealant tape around the threads of the nipple coming out of the master. Thoughts on that?

Thanks!
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Old Jun 22nd 2017, 12:27 PM   #5
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Originally Posted by Stowski View Post
Thanks for the advice, most appreciated! Rogue, were you able to install the new slave by yourself?

I kept digging and found a write-up in an 1199 forum where a guy used some sealant tape around the threads of the nipple coming out of the master. Thoughts on that?

Thanks!
Oberon slave cylinder
Thread tape on the nipples may have some success, (I did it, then swaped to Ti nipples)

Only thing left is RCS MC or somehow make a cable conversion
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Old Jun 23rd 2017, 09:18 AM   #6
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Based on prior DUCATI history I assume my issue was the slave. I mentioned this to my dealer and they wanted to look at it since it was still under warranty. it turned out to be the clutch master cylinder and they replaced it. If it wasn't under warranty it was a $1,400 part.
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Old Jun 23rd 2017, 09:32 AM   #7
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Thanks for the info, timbosocal. I ordered the new Oberon slave cylinder today from motowheels...mil discount...$145 with the bleeder and fluid. Hopefully this works!
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Old Jun 23rd 2017, 09:38 AM   #8
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Originally Posted by Stowski View Post
Thanks for the advice, most appreciated! Rogue, were you able to install the new slave by yourself?

I kept digging and found a write-up in an 1199 forum where a guy used some sealant tape around the threads of the nipple coming out of the master. Thoughts on that?

Thanks!
It's pretty straight forward. You shouldn't have any issues. PM me if you do have questions.

Funny that a $145 part is the fix to replace the crap $1400 slave cylinder.
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Old Jun 23rd 2017, 09:55 AM   #9
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Thanks, Rogue. I'll hit you up if I run into any issues.

Yeah, it's comical how back assward some of this stuff materializes!
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Old Jun 24th 2017, 01:37 AM   #10
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I too think that your problem is the master cylinder. If the feeling and action comes back as you ride, then there cannot be any air in the system. I doubt that changing the slave will have any effect. The slave is just a piston in a cylinder. They can leak or admit air if the seal is not good. Either way, a fault in the slave will not improve as you ride. The master is more complex since it has the fluid reservoir and has vents to allow for expansion and admission. Poor sealing in the master makes the clutch feel soft and can improve as the clutch is pulled a few times after long periods of non-use.

I have suffered poor clutch feel, and the dealer changed the master cylinder.
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