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Feb 25th 2016, 06:09 AM   #1
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
Clutch issue

Bike: Ducati Monster 696
Problem: Clutch doesn't want to engage after it's been stopped and the engine gets hot sitting still.

So I first noticed this last year up at Crown point. We'd been riding about an hour or so and stopped up there for a bathroom break. When I went to go it was like it was stuck in neutral. I got it to move a bit but it was revving more than normal to make that happen. Once it got going though everything was fine the rest of the day and I thought it was just a fluke.
As the summer went on I noticed it happening more when it was hot out and up at higher altitudes after rest stops. Once again when it got moving it runs fine. It progressively got worse and I couldn't take her out on hot days and on a few occasions where I did I would have to sit and wait for the motor to cool down after a stop before she would go again.
She has always been fine when it's cool out but I took her out yesterday and it's happening now even at barely 60deg out. I've bled the clutch cable a million times and sometimes it seems to help and other times it doesn't. The most recent a week ago.
A back note the clutch cable was replaced after I wrecked and put dirt bike handle bars on her for comfort. It's longer than the original and it ran fine for about a year after replacement so I doubt that's the issue, but maybe??
Anyway any suggestions or ideas of what to try next would be great. I'm pulling my hair out over here and no longer feel comfortable taking her out and getting stranded at stops.
Feb 25th 2016, 07:49 AM   #2
 jedijesus's Avatar
 
  Jan 2016
  Portland

  02 R1
Could be anything. It's scrap. Ill give you 3fiddy for it....
ThrottleStop likes this.
Feb 25th 2016, 07:53 AM   #3
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
Quote:
Originally Posted by jedijesus
Could be anything. It's scrap. Ill give you 3fiddy for it....
At least my bike is still running
Feb 25th 2016, 08:42 AM   #4
 wooden's Avatar
 
  Jan 2016
  PDX

  '14 St3R, '05 DR650
Does the Monster have a wet clutch? If so, when was the last time you changed the oil?

I don't know much about clutches, but I do know shifting feels very different after changing the oil on a wet clutch bike. Could be related, I dunno..
Feb 25th 2016, 08:47 AM   #5
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
Quote:
Originally Posted by wooden
Does the Monster have a wet clutch? If so, when was the last time you changed the oil?

I don't know much about clutches, but I do know shifting feels very different after changing the oil on a wet clutch bike. Could be related, I dunno..
Yes it's a hydraulic clutch. She is due an oil change and I will do that as part of the trouble shooting just in case. I always change it every 3000 miles and I'm pretty sure I would have noticed it getting better when I did though.
Feb 25th 2016, 09:02 AM   #6
 Flyboymedic's Avatar
 
  Jan 2016
  Hazel Dell, Wa

  Honda VFR800, Husqvarna TE 610, Ducati Hypermotard 1100S
So do you have a cable operated clutch or a hydraulic clutch?

Sounds like cable operated, wet clutch. If so, this is an interesting issue. I'm pretty sure it has nothing to do with your engine oil and you'll get the issue again with fresh oil. New oil will make bikes shift a bit better but your issue is on a whole different level. I'll be watching this closely.

Edited by Flyboymedic on Feb 25th 2016 at 09:05 AM
Feb 25th 2016, 09:14 AM   #7
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
It's a hydraulic clutch no cable.

I mentioned changing to a longer cable, but I meant hydraulic line...sorry for any confusion.

Edited by ltlpagan on Feb 25th 2016 at 09:28 AM
Feb 25th 2016, 09:28 AM   #8
 wooden's Avatar
 
  Jan 2016
  PDX

  '14 St3R, '05 DR650
Hmm... I don't know much about hydraulic clutches, but I'm assuming they're a lot like any other hydraulic system - worn hydraulic cabling or seals can introduce air or water into the system, at which point the hydraulic pressure can't build up as necessary (or the hydraulic fluid can drain out, with the same effect).

Because it only happened when the bike was hot originally but is now happening more often, I would guess that wherever the hydraulic cable meets the clutch, the seal has worn out. At the beginning, it would only happen when the bike was hot enough to reduce the viscosity of the hydraulic fluid to the point where it could escape the seal. Now, the seal is worn enough that it doesn't even need to be that hot for it to escape.

This is all conjecture as I've never worked on a hydraulic clutch, but it's about the only thing I can come up with... It's either the hydraulic system or the clutch itself, and I would assume the hydraulic system is probably easier to replace/repair.
Feb 25th 2016, 09:31 AM   #9
 
  Jan 2016
  Groton, CT

  B-King I: in a coma; B-King II: Going strong; My wife's bike!
It sounds like the clutch hydraulic fluid is boiling due to the heat. Kinda like brake fluid boiling causing brake failure. I would put fresh fluid in it and flush the crap out of it. You may have swapped a lot of the fluid while bleeding it, but boiling (too hot) fluid is the only thing that makes sense to me.
Feb 25th 2016, 09:34 AM   #10
 SilvieFox's Avatar
 
  Jan 2016
  welches, Oregon

  08Kawasaki Versys(Sylvester),72Suzuki RV90(vanvan),81Honda TwinStar(Bobber),Yamaha225,Honda Shadow
id check your clutch springs and clutch basket for wear, and change your oil, it sounds like its getting hung up and not fully seating (one reason i like cable over hydro clutches )
Feb 25th 2016, 10:12 AM   #11
 Flyboymedic's Avatar
 
  Jan 2016
  Hazel Dell, Wa

  Honda VFR800, Husqvarna TE 610, Ducati Hypermotard 1100S
Hydraulic clutch. Ok, what Wooden stated makes a lot of sense and I'll be curious to hear what you figure out. So I'm assuming you bled the hydraulic line after you mounted it? Bled the master cylinder?
Feb 25th 2016, 10:16 AM   #12
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
Quote:
Originally Posted by Flyboymedic
Hydraulic clutch. Ok, what Wooden stated makes a lot of sense and I'll be curious to hear what you figure out. So I'm assuming you bled the hydraulic line after you mounted it? Bled the master cylinder?
I've bled the line a million times but not the master cylinder. How do I do that separate from the line?
Feb 25th 2016, 10:23 AM   #13
 riceman's Avatar
 
  Jan 2016
  Pasco, WA

  2001 1150GS
no idea on the problem, but wet clutch =/= hydraulic clutch. wet clutch shares oil with the motor (i think it's the motor??), dry clutch is like a car has - no fluids present at clutch.

In bikes with a wet clutch, i know there have been countless threads about which oil to use and what effects it has on clutch. never a definitive answer to be found on which oil is best (like most internet debates) but bottom line is that oil choice CAN have an effect on clutch performance/operation.

Also, certain hydraulic systems prefer certain types of fluids. they're not all cross-compatible, though i forget which ones you should never mix, and which ones are okay.

so, when you choose which fluids (oils, hydraulic fluids, etc) to run, are you using the manufacturer's recommendations?
Feb 25th 2016, 10:26 AM   #14
 riceman's Avatar
 
  Jan 2016
  Pasco, WA

  2001 1150GS
also, did you bleed the hydraulic clutch system per manufacturer recommendations? did you use brand-new fluid?

air bubbles and/or old hydroscopic fluids can be bad for performance.
Feb 25th 2016, 10:32 AM   #15
 ltlpagan's Avatar
 
  Jan 2016
  Vancouver WA

  2010 Ducati Monster 696
Quote:
Originally Posted by riceman
no idea on the problem, but wet clutch =/= hydraulic clutch. wet clutch shares oil with the motor (i think it's the motor??), dry clutch is like a car has - no fluids present at clutch.

In bikes with a wet clutch, i know there have been countless threads about which oil to use and what effects it has on clutch. never a definitive answer to be found on which oil is best (like most internet debates) but bottom line is that oil choice CAN have an effect on clutch performance/operation.

Also, certain hydraulic systems prefer certain types of fluids. they're not all cross-compatible, though i forget which ones you should never mix, and which ones are okay.

so, when you choose which fluids (oils, hydraulic fluids, etc) to run, are you using the manufacturer's recommendations?
I use V-Twin motor oil and DOT4 fluid. Both are suitable for use in the Monster.
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