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 Post subject: Clutch Issue
PostPosted: Fri Aug 07, 2015 5:14 pm 
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Joined: Wed Aug 05, 2015 8:37 pm
Posts: 1
Location: USA
model: 750 Paso
year: 1987
Hello. I have a 1987 750 Paso that I bought a few months ago. It only has 3,300 miles and ran and shifted fine but had a leak in the clutch master cylinder. I replaced that but the clutch wouldn't engage so my mechanic told me something was wrong with the slave cylinder and that the previous owner had put automatic transmission fluid in the clutch resevoir. I got a used slave cylinder out of Eastern Europe and a new slave cylinder seal. The Ducati shop put it all back together but still could not get any clutch pressure and they don't know why. So the bike sits and summer is moving on. Does anyone know what I should do???

Thank you.


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 Post subject: Re: Clutch Issue
PostPosted: Fri Aug 07, 2015 6:20 pm 
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Joined: Wed Oct 27, 2010 5:52 pm
Posts: 360
Location: Essex UK
model: 907 I.E.
year: 1992
Try bleeding from master cylinder at the banjo bolt/hose connection. I replaced my banjo bolts for nipple style.


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 Post subject: Re: Clutch Issue
PostPosted: Fri Aug 07, 2015 10:17 pm 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1592
Location: Newzealand
model: 906 Paso
year: 1990
900streetfighter wrote:
Try bleeding from master cylinder at the banjo bolt/hose connection. I replaced my banjo bolts for nipple style.

Yeah , the clutch can be a proper bitch to bleed . I do mine by forcing the fluid up from the bleed nipple on the slave cylinder , and bleeding air from the banjo bolt at the master cylinder ( as 900 streetfighter says ..... the bleed nipple there is a good idea too ) , some peeps even remove the master cyl from the handle bar so as to hold it at an advantageous angle ( hose still connected ) . My theory is that the internal diameter of the clutch hose is large enough to allow air bubbles to rise faster than you can "pump" them down ..... hence forcing fluid UP from the bottom works better . I used a large syringe. There is a tech tip in the FAQ's showing how to fit a slave piston assy off a later duke , which wont help you bleed it but it is a good mod to do when replacing the original piston/bearing assy :)

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 Post subject: Re: Clutch Issue
PostPosted: Sat Aug 08, 2015 10:50 am 
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Joined: Mon Dec 15, 2014 11:05 am
Posts: 92
Location: Sleepy leafy South Birmingham UK
model: 750 Paso
year: 1987
Mc tool wrote:
There is a tech tip in the FAQ's showing how to fit a slave piston assy off a later duke , which wont help you bleed it
Well actually it will if you have it hanging loose and force the piston into the cylinder with a clamp, as then there's nothing in there to bleed out.

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 Post subject: Re: Clutch Issue
PostPosted: Sat Aug 08, 2015 11:11 pm 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1592
Location: Newzealand
model: 906 Paso
year: 1990
MarkST wrote:
Mc tool wrote:
There is a tech tip in the FAQ's showing how to fit a slave piston assy off a later duke , which wont help you bleed it
Well actually it will if you have it hanging loose and force the piston into the cylinder with a clamp, as then there's nothing in there to bleed out.


:) Yes MarkST your right , and Im sure I would have thought of that if you'd given me a few more seconds :D :D :lol: ...........you see , the one drawback was that the cover had to be in place otherwise when pushing the fluid into the slave cylinder the piston popped out the other side and spewed fluid all over the clutch assy and floor ( that didn't happen to me :mad: :lol: ).............so I was nearly there ;) .......... :roll:

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