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Mechanical and Technical Mechanical and technical topics, help, and discussions

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  • 1 Post By Boatdriver
  • 1 Post By Pavement Tested
  • 1 Post By WarpShatner7
  • 1 Post By Sentinel
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Jul 11th 2018, 06:45 PM   #1
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
Concours 14 drive shaft slop?

Anyone with a C14 experience a little "play" in the shaft as you rock on and off the throttle? It is sort of the same thing a chain does when you load/unload with the throttle. It makes a small clunk sound (small) and I can feel it sort of jerk just a little when I go on and off the throttle gently.

I heard some of the earlier models had a problem with this at the place the forward end of the drive shaft connects to the next piece forward in the drive train. The "fix" was to remove it and pack the joint with grease.

I also heard they resolved that problem in the later models.

Mine is a 2015.

Any way, this might be normal for this bike.

Anyone had that problem and then "fixed" it by packing the joint with grease?

Did it stay fixed?
Jul 11th 2018, 06:59 PM   #2
 Boatdriver's Avatar
 
  Jan 2016
  Washington

  16' Tuono Factory, 08' GSXR 1K Track, 15' Kawi Concours
I have the "slop" as well. Also a 2015. Its not so intrusive yet that I would try packing in grease. Initially the drive train was tight and no sound was heard when moving the rear wheel back and forth when on the center stand. Now I can hear a knock when I do it. I got the bike with 2k miles on it and it now has about 16k. The knock hasn't changed much from when When the it showed up at about 5k miles
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Jul 11th 2018, 07:14 PM   #3
 Pavement Tested's Avatar
 
  Jan 2016
  Bremerton

  '12 ZG1400, '08 GSX1300R, '06 GSX-R 750
Don't discount slack in the transmission. Little of the play you get on a chain bike is from the chain itself given it is properly adjusted. If you were you remove the chain, the countershaft sprocket would still turn back and forth a bit by hand with the bike in gear. A shaft bike will be the same. I doubt the shaft splines are machined to allow an appreciable amount of slack. The splines would end up getting banged up and twisted.

Rolling off the throttle just a little as to not allow engine breaking will relax the transmission and I suspect that's where you are feeling the slop. Just my non-engineer, marginally educated in mechanics, fairly experienced in bike operations opinion.

I do get some slop on my C14 as well. It's a '12 with just shy of 24k on it.
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Jul 11th 2018, 07:14 PM   #4
 WarpShatner7's Avatar
 
  Jan 2016
  Here

Some driveline lash is normal with shafties; there are a lot of segments and each has it's own little bit of play. You can measure static lash by just rolling the bike back and forth from stop to stop in first gear with the engine off, or putting it on its center stand and just turning the rear wheel forward and back, and measuring either how far the tire or rim rotates past a certain point (e.g. the edge of the fender).

No idea what's normal for a Concours, but it's going to be well over an inch unless those are some insanely tight specs. Over 3" maybe I'd start to wonder. Whatever it is, it might be in the factory shop manual, so you can hit the Kawi forums or call an authorized mechanic and ask, but I'd guess that anything that's not a toll call from 2" is nothing to worry about.
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Jul 11th 2018, 07:21 PM   #5
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
I just did the Concours forum and it's normal. Coulda done that first, I guess.

It just started happening recently. Just under 12k on it now. I got it with 500 miles.

It's been super tight all around until it hit about 10k. Only then did it start to feel broken-in.

Now it feels more like a motorcycle.
Jul 13th 2018, 03:28 PM   #6
 MotoDan's Avatar
 
  Apr 2016
  Olympia

  2014 KTM 690 / BMW R1150 GS
Quote:
Originally Posted by Sentinel
I just did the Concours forum and it's normal. Coulda done that first, I guess.

It just started happening recently. Just under 12k on it now. I got it with 500 miles.

It's been super tight all around until it hit about 10k. Only then did it start to feel broken-in.

Now it feels more like a motorcycle.
This Forum has way smarter bikers then the rest
Jul 15th 2018, 08:46 PM   #7
 
  Apr 2016
  Bellingham

  K12RS, KTM 1290
Drive shat slack

Quote:
Originally Posted by Sentinel
Anyone with a C14 experience a little "play" in the shaft as you rock on and off the throttle? It is sort of the same thing a chain does when you load/unload with the throttle. It makes a small clunk sound (small) and I can feel it sort of jerk just a little when I go on and off the throttle gently.

I heard some of the earlier models had a problem with this at the place the forward end of the drive shaft connects to the next piece forward in the drive train. The "fix" was to remove it and pack the joint with grease.

I also heard they resolved that problem in the later models.

Mine is a 2015.

Any way, this might be normal for this bike.

Anyone had that problem and then "fixed" it by packing the joint with grease?

Did it stay fixed?
Weird ! I don't have that in my 2000 BMW
Jul 16th 2018, 05:57 AM   #8
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
spent much of the weekend on my bike. can i just say - DAMN, Kawasaki, this thing is the business! i mean - aint no better bike. just aint.

love this bike.

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