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dry clutch question
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OEF848's Avatar
 
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dry clutch question - May 22, 2013, 07:40 PM

so it won't be too long before I need a new clutch on my 848evo (still have the stock non-slipper). i'm considering the ducati's dry slipper, but i'm wondering if there's a way to adjust the spring tension so you don't get arm pump after riding for like 2 minutes LOL i've tested a couple but haven't ever worked with a dry clutch before so i'm not sure if there are different spring rates (such as with suspension) or if those springs are only in one spring rate or the clutch won't properly function. either way just lookin for a couple of ya other duc owners who hopefully have dry clutches to gimme some good advice. and pls don't hate if this has been posted before... i looked and didn't find anything.
thanks!
- Chris


'11 Ducati 848 EVO
- competition werkes slipons
- quat d "racing header"
- ducati performance neoprene seat
- shift-tech cf rear hugger
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'12 HD 883 Iron
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May 22, 2013, 08:02 PM

Check with Donnie at Duc Pond. I had the same issue on my DS1000. I absolutely hated the clutch pull. He recommended an aftermarket clutch slave cylinder. I installed that and it worked perfectly. Just my $0.02.

Mud


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May 22, 2013, 08:10 PM

Like MD said, I think a clutch slave cylinder would make a bigger difference. And and easier install


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May 22, 2013, 08:43 PM

thanks for the quick replies and sounds like a pretty damn good fix! i just feel like owning a ducati WITHOUT the clackity clack is heresy.... so thanks fellas!


'11 Ducati 848 EVO
- competition werkes slipons
- quat d "racing header"
- ducati performance neoprene seat
- shift-tech cf rear hugger
- evotech fender eliminator
- puig dark smoked windscreen
- motodynamic smoked sequential tail light

'12 HD 883 Iron
- screamin' eagle 1200 big bore stage 2 kit
- vance n hines short-shot pipes
- road6customs 10 inch z-bars
- mother road customs66 rigid mount slim-seat
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May 23, 2013, 06:51 AM

Slave clutch is the best bet. But you can also install lighter springs on the pressure plate if it's still too much pull.

One of my favorite things about riding my Ducati is the looks I get because of the clutch. Get used to saying "It's SUPPOSED to sound like that"


Then again... That's just me.

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May 23, 2013, 09:18 AM

You "CAN" add lighter springs, but the clutch may end up slipping as a result.. they put burly springs in there for a reason.. The slave cylinder is about the best fix though.. bigger piston = less effort = happy forearm..


Chad
Sales Manager Duc Pond Motosports
I Make you Ducati Dreams Come True... LOL! Seriously! I do!

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May 23, 2013, 09:26 AM

Why do you need to replace the clutch so soon? Mileage?
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May 23, 2013, 10:29 AM

Quote:
Originally Posted by iw84u View Post
Why do you need to replace the clutch so soon? Mileage?
*Sorry* - just re-read your post. Evidently my reading comprehension sucks today.

They have a very heavy pull. So you get arm pump / worn out pretty quickly. My first day with mine I could barely use my left hand at the end of the day. (Cue comments about interrupting my social life)

The last time out with the new aftermarket clutch slave cylinder it felt like a strong pull, but evidently not nearly as bad. At the end of the day I was having no issues with arm pump or being worn out.

Mud


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May 23, 2013, 11:16 AM

Quote:
Originally Posted by DucDucGoose View Post
bigger piston = less effort = happy forearm..
Actually it's the exact opposite. Smaller bore = less effort = happy girly forearm lol......
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May 23, 2013, 12:09 PM

For what it is worth I used to get completely worn out with my ZX-10Rs clutch pull (cable operated with heavy springs). I simply adjusted the angle of the clutch lever and my life has been much better ever since. Sometimes the cheap solutions are also the best (may or may not be the case here).


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May 23, 2013, 12:10 PM

Quote:
Originally Posted by REDLEVEL View Post
Actually it's the exact opposite. Smaller bore = less effort = happy girly forearm lol......
Clutch lever? Pft! Who needs that???



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May 23, 2013, 01:01 PM

LOL love all the feedback and humor too... the biggest reason for why I "need" to replace the clutch is because this will be done while I'm deployed to Afghanistan again.... it's customary to dump $ into a toy when ya deploy....so my Duc is gonna be blessed for sure!
I'm thinkin the new clutch slave cylinder and tweaking the angle of the lever should suffice... Can't wait!!!


'11 Ducati 848 EVO
- competition werkes slipons
- quat d "racing header"
- ducati performance neoprene seat
- shift-tech cf rear hugger
- evotech fender eliminator
- puig dark smoked windscreen
- motodynamic smoked sequential tail light

'12 HD 883 Iron
- screamin' eagle 1200 big bore stage 2 kit
- vance n hines short-shot pipes
- road6customs 10 inch z-bars
- mother road customs66 rigid mount slim-seat
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June 5, 2013, 01:10 PM

Quote:
Originally Posted by REDLEVEL View Post
Actually it's the exact opposite. Smaller bore = less effort = happy girly forearm lol......
Chad has it right - bigger piston on the slave requires less pressure.

Pressure (Kg/cm2) = Force (Kg.)/Area (cm2)
- since the force needed doesn't change, if we increase the area the pressure must go down to balance the equation.

Less lever effort needed *But* the slave piston moves less in it's bore per increment of level pull.


- Throttle's on the right. So are the brakes. Good luck.
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June 5, 2013, 01:19 PM

Quote:
Originally Posted by yuu View Post
Chad has it right - bigger piston on the slave requires less pressure.

Pressure (Kg/cm2) = Force (Kg.)/Area (cm2)
- since the force needed doesn't change, if we increase the area the pressure must go down to balance the equation.

Less lever effort needed *But* the slave piston moves less in it's bore per increment of level pull.
Exactly, and this needs to be understood as less movement on engagement/disengagement requires a more careful eye on keeping the clutch bled and adjusted right. I agree and would also recommend a lower effort slave if you don't like the stock effort, but if you start having trouble finding neutral it is usually an indication it needs to be bled. Not a big deal really.


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June 5, 2013, 03:54 PM

Quote:
Originally Posted by REDLEVEL View Post
Actually it's the exact opposite. Smaller bore = less effort = happy girly forearm lol......
Shoulda kept reading.... I knew I was right! for once..


Chad
Sales Manager Duc Pond Motosports
I Make you Ducati Dreams Come True... LOL! Seriously! I do!

1999 Ducati 996 (sold)
1998 GSXR600 track bike (shamu) sold..
2008 Kwaki Versys sold...
2006 VFR800 Sold..
2001 Road King? Yep....
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