| Author | Message | ||
     Paulp1125cr |
i was wondering if anyone knows how to adjust the slipper clutch for 1125cr if you even can. i find that if i downshift to aggresively it will lock up the rear tire. my understanding of the slipper clutch is to avoid this.a friend of mine has a an r6 and says his is adjustable i was wondering if mine was. Also i was wondering if the"de-noid" issue would help with my engine dieing when i blip the throttle during down shifting. thanx for any advice given | ||
| Fresnobuell |
No and no. | ||
| Jdugger |
The 1125r does not have a slipper clutch. In addition, blipping the throttle will insure any slipper action the clutch *might* provide will not be available. (Message edited by jdugger on September 10, 2009) | ||
| Torquaholic |
Jdugger wrote: "The 1125r does not have a slipper clutch." Really? Because this is a direct copy/paste from Buell.com, regarding the 1125R's clutch: "Hydraulic Vacuum Assist (HVA) Slipper-action Clutch. The smooth clutch lever effort and slipper-like action mechanism reduces engine braking during hard deceleration and enhances the overall rider experience." If it isn't a slipper clutch, why do they call it that? My experience is that the engine braking effect of a downshift is greatly diminished on the 1125R, compared to bikes without a slipper design. I can downshift quickly and not lock up the rear wheel, only to a reasonable degree. I can't drop it into first at 60mph and expect it to roll along like nothing is happening. | ||
| Dogbone |
The vacuum assist slipper action clutch differs from a true mechanical slipper clutch. I have no experience with the vacuum assist as I've only test ridden the 1125, but the conventional slipper on my old ZX10 worked as advertised. IMHO, every slipper "type" clutch that isn't a conventional mechanical style, leaves a lot to be desired. My current bike a TL1000S is a good example. There is something engineered into to help eliminate wheel lock up on down shifts, but unless I match revs, aggressive downshifting will see the rear locked and wagging.... | ||
| Marcodesade |
Yup, dogbone, an aggressive downshift --- especially on smooth pavement --- will result in loss of traction. You don't necessarily have to "match revs" --- you can engine-brake some --- but the greater the effect, the greater the likelihood the back end will break free. | ||
| Jaimec |
It doesn't say it is a slipper clutch. It distinctly says "Slipper LIKE clutch." The devil is in the details. | ||
| Torquaholic |
Well... hell. That's some good info. Thanks. I thought the 1125 had a slipper clutch, wasn't aware that there was a mechanical difference between a slipper and a HVA-slipper-esque. Learn something new every day! I guess Jdugger literally meant no true slipper clutch in the 1125R... Makes sense now. | ||
| Paulp1125cr |
so does anyone else have an issue with engine stalling when you blip the throttle downshifting? | ||
| Jpowell490 |
Paul, Yes I had that issue terribly. DE-NOID IT immediately, super easy and fixes that pretty much completely. If you need any help let me know, there is a great post on the forums with pictures about how to do it. Don't get discouraged, once you get past the initial problems the bike is fantastic. | ||
| Paulp1125cr |
thanks jpowell i was wondering, if your not concerned about weight do you have to pull the servo motor out or can u just buy the plug from buell and disconnect it from the wire harness | ||
| Xnoahx |
The slipper clutch on these bikes works on engine vacuum. It only works when you are not on the throttle. Like Jdugger said, if you a blipping the throttle you are taking that vacuum away so the slipper action wont happen. It works really good when you are using it right. | ||
| Chadhargis |
The way the vacuum clutch works is really nice. Basically, you can let the clutch out fairly quickly (but not DUMP it) and you get a nice smooth downshift. The vac action basically engages the clutch softly. I really like it, and it makes banging two or three gears down much easier. I've never ridden a true slipper clutch, so I can't compare to one. | ||
| 68eb429 |
ok for what its worth....its a slipper clutch. try not clutching it....i have done both and every time i clutch it,it brakes traction how ever if used as it was designed and just pop it down it wont brake traction | ||
| Paulp1125cr |
do u mean downshift with no clutch at all, i always thought that was hard on the gears | ||
| Ridenusa4l |
Yes, you can just buy the plug and plug it into the harness, and it will be disabled, thats what i did  lol AMAZING difference IMHO Jake | ||
| Froggy |
Why does MacDonald's call their Big Mac a burger?  | ||
| Slaughter |
I screwed up a shift a FEW times on the Inside Pass track day... my bike has reverse pattern, the 1125R demo bike had standard. We were playing - Dixon on the XBRR and Hurley on another demo 1125R - rolled it on with them both following and instead of shifting UP into 5th, I shifted DOWN into 3rd! FAWCK - the rear locked up and skipped/hopped - they both whipped around and Dixon looked back to see if I was OK. It DOES function as a slipper in "normal" braking/shifting - but it sure doesn't make it idiot proof. I think the racing slipper offered in the P&A catalog is a ball-and-ramp type true slipper - but I can't confirm that. I just put the STM slipper in the XB and am eager to try / test it in a couple weeks. | ||
| Easyrider |
What helps is too make the gas return fuelmap much richer. The most tuners, leave this part alone, because they don't know. Add more fuel too the gas return map, and you will feel on the track and road, that the bike is not that agrassive anymore on hard engine braking, or wrong shifting (-; And the rear wheel, will not block that hard anymore.... | ||
| Zac4mac |
Interesting, Dris. I would be inclined to go the other way. I can feel, in my Z-28, when the fuel cuts off shortly after I take my foot off the gas. I kinda LIKE that Jake-brake. Then again, I'm no racer. We do have a couple of those Suter slippers at the shop. I'll have to open one and have a look-see. Z | ||
| Jaimec |
There IS an advantage to the Buell "slipper-like" clutch. Ever try to bump start a bike with a TRUE slipper clutch?? | ||
| Jpowell490 |
Paul, Thought I posted this last night, but maybe it did not go through. You can just unplug it and put in the resistor, but you still have that extra pull of the solenoid on the throttle. It isn't that hard to remove that stuff at all, took me about an hour or two, but I was really taking my time. I would jerk it off there completely. Jason | ||
| Zac4mac |
The throttle is noticeably lighter without the noid's cable attached. As long as you're in there, be sure to tie the front and rear throttle plates together. It's a rideability thing... I really was worried that I would have little or no engine braking with this slipper clutch. We talked about this for months before the first 11s rolled off the line and started to be delivered back in '07. I am pleased with what we got, versus what we thought we MIGHT get... Z | ||
| Micheal |
Ok, this thread is a little old So if I de-noid my 1125R this will help back tire from breaking free while downshift heading into corner? If I don't de-noid but go with EBR ECM gas pump with a pipe will this fix my problem? I don't mind the break free, but it's crap on the road that make me wonder how much of risk am I at! (high) I could use some new insite on this please feel free to voice your opinions on weather im just riding wrong or way's to fix this like a clutch bleed ect... Thanks, Mike | ||
| Froggy |
No, all the noid does is restrict the air intake under specified acceleration conditions.
No, your issue is most likely rider error, you probably are downshifting way to hard and fast. Not trying to be a dick or offend you or anything. |
