Update - attached (loosely) as I need to wait for a replacement bolt from Oberon as one of the six was the next size up.
Just changed my old pressure plate out and replaced with same as NeilH. With normal springs 38mm there does not seem enough pressure to stop the clutch from slipping ? In fact they only compress about 10mm before hitting the barrel. Any help
Hi Just dived into this thread, and don't know 748R slipper personally, but at first glance that new pressure plate is going to need (6) shorter spring posts fitted isn't it? unless i'm missing something..
Yeh I agree shorter post or another set of inserts on the other side of the springs. Bit of a mystery at the moment. I see expat and NeilH have both fitted the same plate so await their response. Or maybe just longer springs.
Do they come in different lengths then ? I never bothered to change the pressure plate on my old 748r or else I would have already experienced the outcome
Hi Dave Just to try and help with your question: have you done exactly the same as O.P. and what do you mean "hitting the barrel"? If you have done the same with std longer posts, then that would explain why you are not getting plate "clampage".
The insert hitting the post. On the OEM plate you need to apply slight pressure for the 20mm cap head screw to start in the thread of the post. On the new plate with the deeper recess the screw enter about 12mm before taking up the spring slack.
Okay, so late to the party again. Do you still have the original 748R steel basket and 3 ramp slipper centre fitted ? The shiny new DP pressure plate you have in the picture comes with the aluminium light weight slipper clutch fitted to the 1098R. Pretty sure I have the main parts of both clutches in pieces so will try and see if there are any differences. Andy
The top spring cap is supposed to tighten down on the post, that bit is normal. So yours is the same as O.P. then? As I said in #27 this is the reason as springs aren't getting compressed correctly because the spring posts and the pressure plate look to be incompatible. If you have a hunt around the site that sells that red pressure plate, see if you can see a link to a spring post that is sold for use with it.
Really interesting! The clutch does feel really light and this probably explains why! it does make sense that the springs aren't now as 'long' because of the recess. I look forward to the answer. Have only ridden the bike twice since I changed the pressure plate - I did wonder if there was a bit of clutch slip a couple of times. Thanks
Exactly the same as mine Neil there is not enough pressure on the spring now to stop the clutch from slipping. I haven’t ridden mine but could tell it was not right.
There you go, what @Chris said is the answer, looks like the shiny new DP pressure plate won’t be compatible with the OE clutch without some modification to the spring posts. I’ll try and get a photograph. Andy
No trouble, fortunate to have the bits to hand and always happy to help if I can. Although not sure there are many people fortunate enough to have a 748R and a 1098R Andy
Sorry. Bit late to respond, but my response would not help anyway as my 748r has had its clutch changed back to the non slipper.
