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  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    21 Mar 2017 10:28 PM
    I've done over 1000km since primary oil change and it's improved a lot but clutch still tends to grab a bit at the last bit of release. More pronounced two-up. Adjusted the clutch 200km ago and made no difference. There is no slippage or shuddering. If I do a hard takeoff it is hardly detectable. Put up with it I guess.
  • paulybronco Posts: 9403
    Forum Legend paulybronco
    22 Mar 2017 07:40 AM
    Posted by coolvirgo54 on 21 Mar 2017 09:28 PM
    I've done over 1000km since primary oil change and it's improved a lot but clutch still tends to grab a bit at the last bit of release. More pronounced two-up. Adjusted the clutch 200km ago and made no difference. There is no slippage or shuddering. If I do a hard takeoff it is hardly detectable. Put up with it I guess.

     Still does not sound like its fixed really. I think its either a warped clutch spring or friction plate in the clutch. Its not a major job to pull the primary and have a little bo peep.

  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    22 Mar 2017 11:41 AM
    Point taken. Winter is not that far away and I am planning on doing a fair bit of disassembly to clean the impossible to get places on the ultra so I think can probably wait until then to strip out the clutch and take a look. It's only done 22000km and i have done 17500km of that, mostly long miles not urban, so its a bit disappointing if there is a clutch issue. Is it common??  Maybe the clutch doesn't like taking off with the bike weighing 600+kg for 95% of the time. Should I think about a heavier clutch anyway with this load??
    But then I go back to the fact that it was perfect before I put Syn3 in the primary. The problem started instantly.
  • paulybronco Posts: 9403
    Forum Legend paulybronco
    22 Mar 2017 05:55 PM
    Posted by coolvirgo54 on 22 Mar 2017 10:41 AM
    Point taken. Winter is not that far away and I am planning on doing a fair bit of disassembly to clean the impossible to get places on the ultra so I think can probably wait until then to strip out the clutch and take a look. It's only done 22000km and i have done 17500km of that, mostly long miles not urban, so its a bit disappointing if there is a clutch issue. Is it common??  Maybe the clutch doesn't like taking off with the bike weighing 600+kg for 95% of the time. Should I think about a heavier clutch anyway with this load??
    But then I go back to the fact that it was perfect before I put Syn3 in the primary. The problem started instantly.

     My  Street Glide has 56k on it now with the std clutch except for the heavy duty spring. It started slipping under load at about 35k but the spring fixed it. The clutches are generally very good but remotely possible it has been slipping for a while causing it to heat up and damage itself. A teardown will reveal all

  • paulybronco Posts: 9403
    Forum Legend paulybronco
    22 Mar 2017 05:58 PM
    Posted by paulybronco on 22 Mar 2017 04:55 PM
    Posted by coolvirgo54 on 22 Mar 2017 10:41 AM
    Point taken. Winter is not that far away and I am planning on doing a fair bit of disassembly to clean the impossible to get places on the ultra so I think can probably wait until then to strip out the clutch and take a look. It's only done 22000km and i have done 17500km of that, mostly long miles not urban, so its a bit disappointing if there is a clutch issue. Is it common??  Maybe the clutch doesn't like taking off with the bike weighing 600+kg for 95% of the time. Should I think about a heavier clutch anyway with this load??
    But then I go back to the fact that it was perfect before I put Syn3 in the primary. The problem started instantly.

     My  Street Glide has 56k on it now with the std clutch except for the heavy duty spring. It started slipping under load at about 35k but the spring fixed it. The clutches are generally very good but remotely possible it has been slipping for a while causing it to heat up and damage itself. A teardown will reveal all

     PS Have you tried it to see if the clutch is slipping?  Put it into a higher gear say going up a hill stay at a constant throttle and give the clutch a "fan"if the revs increase and speed does not.......

  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    23 Mar 2017 11:19 PM
    Yeah I've tried the low speed high gear test and also a stall down test which I don't really like to do and there is no sign of slippage.  There was no sign of excessive friction material on the derby cover when I changed the oil. A couple of times today it took up smoothly and that's a good sign for me that there is something mechanically wrong like spring or perhaps warped friction plate(s) as has been suggested.
    This bike had only done 4500km when I purchase it but I also only got 17000km out of the back tyre. I've seen that in the USA they claim up to 20000 miles.Still on original front at 22000km and I think it will go another 5000km. I wonder whether it had a bit of a hiding in that first 4500km. I'm pretty gentle on the clutch so if there is a problem I can only think that it was flogged before I got it or the clutch is just not coping with the maxed out weight I almost always carry.

    I'll strip it down come winter and take a look.

    Question: Since I'm almost always taking off at 600kg+ should I put a heavier spring in? What are my options for a heavy duty clutch?

    i really appreciate the input.
  • paulybronco Posts: 9403
    Forum Legend paulybronco
    24 Mar 2017 06:34 AM
    Posted by coolvirgo54 on 23 Mar 2017 10:19 PM
    Yeah I've tried the low speed high gear test and also a stall down test which I don't really like to do and there is no sign of slippage.  There was no sign of excessive friction material on the derby cover when I changed the oil. A couple of times today it took up smoothly and that's a good sign for me that there is something mechanically wrong like spring or perhaps warped friction plate(s) as has been suggested.
    This bike had only done 4500km when I purchase it but I also only got 17000km out of the back tyre. I've seen that in the USA they claim up to 20000 miles.Still on original front at 22000km and I think it will go another 5000km. I wonder whether it had a bit of a hiding in that first 4500km. I'm pretty gentle on the clutch so if there is a problem I can only think that it was flogged before I got it or the clutch is just not coping with the maxed out weight I almost always carry.

    I'll strip it down come winter and take a look.

    Question: Since I'm almost always taking off at 600kg+ should I put a heavier spring in? What are my options for a heavy duty clutch?

    i really appreciate the input.

     Would read nothing into the tyre life other than these big jiggers are very critical with tyre pressure settings and that can make a huge difference to mileage . I run my rear at 42 psi cold. All the heavy spring does is force the plated harder together so if you are not getting slip, well that decision is yours. Just to clarify about a heavy duty clutch, i am not suggesting a complete racing clutch with basket i am talking plates only. There are many brands out there with S/eagle and Barnett getting plenty of mentions. 

  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    24 Mar 2017 11:44 AM
    Thanks for that.
  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    15 Jul 2017 04:43 PM
    Well I've done a few more thousand km on the Ultra including towing the trailer to Kalbarri and back. Nothings changed. No better, no worse. Almost unnoticeable solo. Did clutch adjustment back in March. The heavier the load the more pronounced it is. Not going to worry too much about. Gentle take-offs rule and if something breaks I'll fix it. been doing it for over 6000km now. 
  • Nutty Posts: 113
    Stock Poster Nutty
    30 Jul 2017 09:43 PM
    Posted by coolvirgo54 on 04 Mar 2017 11:18 AM

    Love it!!

     CV, like you I'm an old fart with a wealth of bike building experience. my bikes have a few GP titles, every Guinness distance jumping record and too many National titles to count. I'm new to HDs though and keen to learn. 

    Re: the OP. I'm 99% sure the issue here is interaction between the two lubes. To test this will cost you $30 or so. Warm up the primary to full temp, tip in 1/2 bottle of Wynns Engine Flush and ride the bike up and down the box. Don't use any other brand except Wynns, it's the only one with an EP rating equal to the original-fill oil. Dump the hot oil/flush mix and refill. If a partial fix is evident, pop the clutch plates out and thoroughly clean all the frictions with Shellite.

    Given that your issue happened instantaneously upon changing the oil, it's not depleted oil, nor a mech issue.

    Worth a try, as is resetting the clutch ramp system to spec. 

    Cheers, Nuts.



  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    07 Jan 2018 12:29 PM
    final result. Kept using recommended mineral oil in primary for the last 20000k. No change to poor take up. Still grabbed at the last point of lever release. Been using Penrite 10tenths racing oil ( 20w60 fully synthetic) in the engine for the past few changes and i thought I might try that in the primary case as the specs said it was ok with MC clutches.
    And.... well.... there you go!! Immediate improvement and getting better with every km. Solo the clutch is completely back to normal. Weighing at 600kg two-up there is the tiniest weeniest grab at final lever release very occasionally but I have only done half a tank of fuel and if I do a reasonably conservative takeoff it doesn't happen at all.

    Happy chappy. Don't really understand why it happened in the first place, unless due to constant heavy load, and don't really know why its fixed now.
  • Baloffski Posts: 899
    Victoria
    Performance Poster Baloffski
    08 Jan 2018 08:02 AM
    Same issue with my 2012 Glider.
    Gave her a change of all juices, new Synthetic oil, in engine, gearbox and primary and guess what.
    Which reminds me, gotta do brake fluid this week.
    Premium synthetic fluid in Primary, ride for a few hundred Kays, clutch slipping at take off and acceleration, really annoyed.
    Adjusted clutch a few times and still same inherent problem.
    Changed out to mineral oil in Primary, problem gone away, immediately.
    Some say shouldn"t matter, but I know it does, on my bike anyway.
  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    08 Jan 2018 11:34 AM
    Final, final result. Clutch is completely back to normal in all conditions after another 250km yesterday.
  • coolvirgo54 Posts: 70
    Bunbury, Western Australia
    Stock Poster coolvirgo54
    08 Jan 2018 11:36 AM
    Posted by Baloffski on 08 Jan 2018 05:02 AM
    Same issue with my 2012 Glider.
    Gave her a change of all juices, new Synthetic oil, in engine, gearbox and primary and guess what.
    Which reminds me, gotta do brake fluid this week.
    Premium synthetic fluid in Primary, ride for a few hundred Kays, clutch slipping at take off and acceleration, really annoyed.
    Adjusted clutch a few times and still same inherent problem.
    Changed out to mineral oil in Primary, problem gone away, immediately.
    Some say shouldn"t matter, but I know it does, on my bike anyway.

     What synthetic oil did you use??


  • Steve L Posts: 1187
    Gold Coast
    Performance Poster Steve L
    13 Jan 2018 09:31 AM
    Posted by steelo on 04 Mar 2017 10:39 AM
    Posted By coolvirgo54 on 03 Mar 2017 9:49 PM

    Thanks but it doesn't quite work that way. I'm wired differently to most which creates problems. I'm whats called a high functioning autistic. It means I know a whole bunch of shit I can't possibly know without degrees and stuff that I don't have. My list of technological achievements is pretty long. It doesn't mean shit to me as I don't see the significance. Means I have had a lifetime of anxiety and depression. I don't feel emotion like normal people and my reality is quite different It is what it is.

    On the other side I am 62, I love drinking too much piss, fucking hot and nasty women, outrunning the cops(I even run a flip plate on my ultra), generally being a deviate and crazy bastard with a fuck you attitude but also like to help anyone in need. 

    That just means you won't stand out too much in this place. smiley

     Haha 

     

     

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