Neutral problem clutch fluid pressure

Mar 2019
17
1
Wellington
So I have the neutral selection problem when the engine is running. Hyperstrada 821 2013. Have checked the cable free play and all to spec.
Just had a chat with a local ducati mechanic, and it turns out that it is likely an issue with the clutch fluid pressure. There is a ducati tech dealer doc here which explains the issue and resolution:




This document does not apply to the 821, but seems to be the same issue. My mechanic says he has done dozens of these fixes. So has anyone here had this procedure carried out? B
 
Last edited:
Apr 2013
757
12
uk
Dont bother with the spec cable free play, take it up a little more and check the bite point of the clutch isn't too close to the bar and try that.
 
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Sep 2017
288
3
Lansing Mi
The 821 does not have a threaded dowel with locking nut. It is a ball on spring on bolt design(bottom assembly in my pic). You issue should be resolved with adjusting the cable as mentalist mentioned. You can feel the point that the lever makes contact with the clutch itsself. Make that slop/play smaller.
 

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Apr 2013
757
12
uk
So I have the neutral selection problem when the engine is running. Hyperstrada 821 2013. Have checked the cable free play and all to spec.
Just had a chat with a local ducati mechanic, and it turns out that it is likely an issue with the clutch fluid pressure. There is a ducati tech dealer doc here which explains the issue and resolution:

Your Mechanic is both right and wrong, he'd be right if this had a hydraulic clutch, but it doesn't, it is cable operated.
 
Mar 2019
17
1
Wellington
The 821 does not have a threaded dowel with locking nut. It is a ball on spring on bolt design(bottom assembly in my pic). You issue should be resolved with adjusting the cable as mentalist mentioned. You can feel the point that the lever makes contact with the clutch itsself. Make that slop/play smaller.
Did you read the document? It specifically talks about the dowel being a ball on spring bolt design as you mention the 821 has!
 
Mar 2019
17
1
Wellington
This is not related to the hydraulic clutch, it's to do with the oil pressure in the clutch itself, not the method of actuation. The document has nothing to do with hydraulic clutches.
 
Apr 2013
757
12
uk
This is not related to the hydraulic clutch, it's to do with the oil pressure in the clutch itself, not the method of actuation. The document has nothing to do with hydraulic clutches.
There is no oil pressure on the 821 clutch, it's just a wet clutch design, basically sitting in an oil bath, it's mechanically operated.
We are trying to help you out here.
If your struggling with the bike running but ok when engine is off, it's most probably the clutch not fully disengaged.
 
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Reactions: Araitim
Sep 2017
288
3
Lansing Mi
We are trying to help you out. If you have genuine questions maby you should have less of an attitude. The pic I posted is from my bike, a 2013 821 that had extensive wet clutch mods then ultimately switched to a dry clutch(both cable actuated and hydraulically actuated)I did read the link you sent. The 821 DOES NOT have an adjustable screw. It has exactly what I showed in the pic. I replaced mine with a block off limiting screw taken from an 848 dry clutch conversion.

As the mentalist mentioned, it is an OIL BATH clutch. Nobody mentioned "hydraulic actuation" The oil empty into the center of the clutch and flings outward. Pressure here does not have an effect on whether or not it can find neutral. Simply put, you dont have the engagement set properly. You have too much slack. Fix this and fix your issue.

Let's get more in depth to your little clip you posted. The 2013 late 2014(early 15) bike used an external oil pump the same as what was in the classic ducati motors. 2015+ they cast that pump into the engine case. At this point they needed to adjust the amount of oil pushing through the clutch output shaft and added the adjustable pressure regulator(as pictured in your little clip). You bike is an 821, this oil pressure has no affect on your clutch fully disengaging.

Another thing to note, do you have the judder spring kit? The early 821 did not include this. There is a kit out there to help with engagement and disengagement....but this is also not your problem. You problem is the slack in your clutch cable. All of this is easily found using the search feature. (Surprised noone has mentioned that. Years ago people here used to love to say that).
 
Mar 2019
17
1
Wellington
sorry guys not trying to have an attitude and i do appreciate the help. The ducati mechanic does sound like he knows his stuff hence my questions. Problem with taking more slack out is that it moves the lever too far away from the handlebar for my small hands! I do have the bike booked in with the mechanic next week but i am now wondering if it's worth it.....
 
Apr 2013
757
12
uk
sorry guys not trying to have an attitude and i do appreciate the help. The ducati mechanic does sound like he knows his stuff hence my questions. Problem with taking more slack out is that it moves the lever too far away from the handlebar for my small hands! I do have the bike booked in with the mechanic next week but i am now wondering if it's worth it.....
No worries,
Will cost nothing to try what we have suggested and there are adjustable levers that don't cost a fortune if you need to adjust the span.
These bikes are renowned for clutch issues due to incorrect adjustment, they are very sensitive to being out a little and need regular adjustment as they wear.
I've been a time served mechanic for over 35 years and been riding bikes longer. I've got over 30k miles on my hyperstrada and know when it needs the cable adjusting. It causes the issues your having.