This spacer is for per 2000 model year ducatis with a shorter pushrod 916etc and should only be fitted if the pushrods protrudes less the 30mm from the gen cover
I said I've fitted it but I cant remember that was back in 05 , but it must be the right length because without it wouldn't even push the plate away (not long enough) or with it would only go so far as springs would not allow any more travel so I am confident its fine . I remember dealing with it at the time but have since forgotten which way it was. Thanks though .
Ah I see are you still having problems with it selecting neutral ? Is it fine when u actually ride it ? No clutch slips etc ? Cheers wayne
If you are happy with the clutch performance without the dished plate I would leave it replaced with a flat one. My 4 post slipper is bloody awful at setting off without it (lots of noise and grabbing) as the dished plate is supposed to give more progressive engagement. FWIW I had the same problems and took a load of plain plates to a track day and kept swapping the last couple of plates (running road pack even though it is only used on track) until I got the clutch to slip properly on the overrun and grip properly on acceleration. For me the correct clutch pack thickness out of the bike is 37.5 mm. I need to keep checking it every couple of track days as the plates wear and the slip characteristics change. I did have problems a while back until I found that the dished plate had collapsed and was basically a flat plate. A new one sorted things out
Remember that two frictions together will turn together as they are both firmly in the basket slots and can't move relative to each other except to separate.
Did you make sure you lined up the triangular arrow on the pressure plate with the slotted post?? It's more important to not exceed the stack height than have it too low. The top plate mustn't be able to pop out. Aftermarket friction plates often seem to bind in the basket slots. The cure is to replace the top third or half of new friction plates with your old ones. This allows the clutch to separate and not drag.
Hmmmm funny enough I have just fitted Ducabike slipper to my 1098 Streetfighter, according to the destructions stack height should be 36.5. I have replaced the last two 1.5 with 2mm plates and brought the stack height up to 37.5mm to stop it slipping under load, the biting point is still right at the end of clutch lever travel so I may swap out another 1.5mm with a 2mm As per Ducabike manual Fr 3.0mm St 1.5mm dished Fr 3.0mm St 1.5mm Fr 3.0mm St 1.5mm Fr 3.0mm St 1.5mm Fr 3.0mm St 1.5mm may replace with 2mm Fr 3.0mm St 1.5mm Replaced with 2mm Fr 3.0mm ST 1.5mm Replaced with 2mm Fr 3.0mm St 2.0mm 36.5mm
It wasn't until I acquired a 999RS pressure plate that I learnt Ducati did at least 3 different clutch spring rates (blue, red and yellow ?) and 4 different cup sizes to vary the amount of pressure applied to the stack. I currently use the 748R springs which my memory tells me are blue and the stiffest. Andy
JHP sell dished plates for summit like £2 each. I've always used 36.5mm without issue. I also only use steel springs now after some slip issues with stainless springs. I noted this by accident after putting old steel springs on instead of my stainless ones and the clutch slip dissapearing. Related or not, I don't know. I didn't question it as now my clutch worked so I just rolled with it.
Like Andy says the steel springs your using might be stiffer so exert more force on the stack keeping the plates tightly together when clutch disengaged. Think I might get stiffer springs for mine (blue) it's either that or keep increasing stack height in increments of .5mm
Be wary of increasing stack height too much. Too much stack height puts the top plate dangerously close to the end of the basket slots and it can jump out. I have stainless springs (Avanti) and a stack height in the low 30s and get no slip. I don't have a slipper clutch though.
