Author Topic: C14 rear shock  (Read 15165 times)

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Offline diego092409

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Re: C14 rear shock
« Reply #25 on: November 18, 2013, 04:41:47 pm »
I am looking at doing this modification and have a question.  Why couldn't a person just drill out the one side of the bottom shock mount to accept the lubricating shoulder bolt instead of the custom bushing? 

EDIT: Ignore this, I see why not... How precise does the bushing need to be?  I have some Stainless steel 20 mm tubing at work will this work or should it be something that is machined on the outside to make sure it is within the tolerances?
« Last Edit: November 19, 2013, 01:42:04 pm by diego092409 »

Offline Benjamin

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Re: C14 rear shock
« Reply #26 on: January 19, 2014, 07:08:53 pm »
C14 shock folks got a part number on the ZZR1200 bushing?

Thanks in advance!

- Beej
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline Steve in Sunny Fla

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Re: C14 rear shock
« Reply #27 on: January 20, 2014, 01:59:48 am »
I just removed a c-14 shock and 1.125" lowering rocker from Shoodaben. If anyone wants it, it's a fully set up plug n play. The rocker has bearings and seals, properly sized shock bushing, and a mounting plate for the preload adjuster. everything is cleaned and ready to go - 250.00 shipped in the US. PM me if interested. Steve
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Offline diego092409

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Re: C14 rear shock
« Reply #28 on: January 26, 2014, 10:58:09 pm »
Steve,

Why did you end up removing the c 14 shock?  I just performed this upgrade. Went in in a couple of hours. Drilled out the top to accept the 12 mm bolt and re purposed the old bottom bolt to make the bolt. It was a lot simpler than I expected.

Also, those who have used the c 14 shock upgrade. What settings did you use?

Offline Steve in Sunny Fla

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Re: C14 rear shock
« Reply #29 on: January 27, 2014, 12:53:43 am »
Just to try something else. i put on a progressive 465. So far, I won't say I made a mistake, but I think the c-14 setup is a fine setup. Maybe I'll change my mind with some more aggressive riding. steve
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Offline Benjamin

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Re: C14 rear shock
« Reply #30 on: January 27, 2014, 01:39:44 pm »
Diego, do you recall the part number for the bottom bushing?  Did you use the ZZR1200 bushing?

'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline diego092409

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Re: C14 rear shock
« Reply #31 on: January 27, 2014, 10:21:24 pm »
Beej

I just modified the old bolt that was in the bottom of the c10 shock. I got a 10 mm drill bit and clamped the old bolt in a vice and drilled through the headed.  The grease hole was a perfect pilot hole. I then cut it off with a portaband to width and touched it up with a grinder.  It was a lot easier than I anticipated.  I had doubts that a 10 mm bit would be big enough for the 10 mm bolt but it slid right in. I drilled out the to top bushing of the shock to accept the 12 mm top bolt.  A 12 mm drill bit did the trick.  No slop whatsoever.  It bolted right up. 

Offline Benjamin

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Re: C14 rear shock
« Reply #32 on: January 29, 2014, 07:30:14 pm »
Drilling it out vs. putting in the different sized bushing seems like the bushing is the easier route.  Does the drilling out lessen the integrity of the shock?
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline diego092409

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Re: C14 rear shock
« Reply #33 on: January 29, 2014, 10:08:34 pm »
Beej,

I thought the same thing until I saw out meaty the upper bushing was. It is still substantial with it drilled out to 12 mm. Some guys just leave it with the 10 mm bolt in the 12 mm holes in the upper mount and have had no issues.

The bottom bolt on the c 10 has a 20 mm OD so drilling out the grease channel for a 10 mm bolt to go through it, you are essentially creating the requisite bushing. It is easier to do that than to find 20 mm round stock to fabricate a bushing from. Trust me, I scoured mcmaster carr, grainger and MSCDirect to find ready made items. It was easier than I anticipated.

Offline Benjamin

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Re: C14 rear shock
« Reply #34 on: January 30, 2014, 08:56:53 pm »
I think I'm beginning to see the light. >:D
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline Steve in Sunny Fla

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Re: C14 rear shock
« Reply #35 on: February 01, 2014, 03:02:28 am »
cutting down the bushings from a zzr1200 or zx1100 will resolve the bottom bolt issue. Personally, I felt drilling the bottom of the shock would weaken it, as the shock cleats aren't wide to begin with. JMO, steve
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Offline Benjamin

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Re: C14 rear shock
« Reply #36 on: February 01, 2014, 06:05:45 pm »
Steve - that's the ZZR1200 bushing and bolt from the top mount?

Also, I didn't realize we're losing the zerk fitting as a method of applying grease - or am I wrong about this?  New method is just to pull it out and apply grease; what, once a year?  I took off the c10 bottom bolt today.  Its cool how the zerk fittings and bolt work.  Since I am more hobbyist than mechanic I hadn't known how it operated before today.  Seems a shame to lose it.  Does the ZZR1200 bushing and bolt have the zerk fitting?  I can't hardly tell from the diagram (http://www.bikebandit.com/houseofmotorcycles/2005-kawasaki-zzr1200-zx1200c/o/m149150#sch436057)
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline fred-houston

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Re: C14 rear shock
« Reply #37 on: February 01, 2014, 06:14:12 pm »
  Does the ZZR1200 bushing and bolt have the zerk fitting? 

No it doesn't.  Someone did post that they drilled out the bolt and inserted one.
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Offline Steve in Sunny Fla

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Re: C14 rear shock
« Reply #38 on: February 02, 2014, 01:15:36 pm »
Steve - that's the ZZR1200 bushing and bolt from the top mount?

Also, I didn't realize we're losing the zerk fitting as a method of applying grease - or am I wrong about this?  New method is just to pull it out and apply grease; what, once a year?  I took off the c10 bottom bolt today.  Its cool how the zerk fittings and bolt work.  Since I am more hobbyist than mechanic I hadn't known how it operated before today.  Seems a shame to lose it.  Does the ZZR1200 bushing and bolt have the zerk fitting?  I can't hardly tell from the diagram (http://www.bikebandit.com/houseofmotorcycles/2005-kawasaki-zzr1200-zx1200c/o/m149150#sch436057)


No, it's the bushing the zzr uses in the rocker in place of our big bolt. Yes, you lose the zerk in the bolt and I wouldn't drill the smaller bolt; you can drill through the rocker and install a zerk, or you can just remove the bushing once on a while and add grease. Honestly I ran mine for maybe 20k and the grease / bearing / bushing was fine when I removed it, and I didn't have any zerks . HTH, steve
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Offline Benjamin

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Re: C14 rear shock
« Reply #39 on: February 03, 2014, 08:37:44 pm »
Steve - that's the ZZR1200 bushing and bolt from the top mount?

Also, I didn't realize we're losing the zerk fitting as a method of applying grease - or am I wrong about this?  New method is just to pull it out and apply grease; what, once a year?  I took off the c10 bottom bolt today.  Its cool how the zerk fittings and bolt work.  Since I am more hobbyist than mechanic I hadn't known how it operated before today.  Seems a shame to lose it.  Does the ZZR1200 bushing and bolt have the zerk fitting?  I can't hardly tell from the diagram (http://www.bikebandit.com/houseofmotorcycles/2005-kawasaki-zzr1200-zx1200c/o/m149150#sch436057)


No, it's the bushing the zzr uses in the rocker in place of our big bolt. Yes, you lose the zerk in the bolt and I wouldn't drill the smaller bolt; you can drill through the rocker and install a zerk, or you can just remove the bushing once on a while and add grease. Honestly I ran mine for maybe 20k and the grease / bearing / bushing was fine when I removed it, and I didn't have any zerks . HTH, steve


This is precisely my point of confusion.  The ZZR1200 bushing has a 12.1 inner diameter, which would presumably require a 12 mm bolt.  The c14 bolt is 10 mm, so if one does not enlarge the shock cleat... ???   :o why... can't... I... grasp... this...  :o
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline Benjamin

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Re: C14 rear shock
« Reply #40 on: February 10, 2014, 01:05:41 am »
Now I'm considering tapping the C10 bolt to create the bushing.  That way there's less moving around down there, aside from the bearings doing there job.
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline fred-houston

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Re: C14 rear shock
« Reply #41 on: February 15, 2014, 04:51:03 pm »
I have the C-14 shock mounted, and it turned out is was not a difficult job.  The only issue was the lower shock bushing.  I was going to make one out of the stock C-10 mount, but as it turns out I have a friend that is a retired machinist.  Called him up, he said come on over, and in a few minutes I had a perfect lower bushing.  It's nice to have friends with talent, and expensive tools.    ;D

I have only taken it for a short ride, and so far I like it a lot.  I plan on taking it for a 2 or 3 hundred mile run tomorrow.  I also put the Meanstreak with a PR 3 wheel on.  So far, the first thing I noticed is the bike is way simple to put on center stand.  I also noticed that on side stand the bike is leaning more.  Doesn't appear to be unstable, but there is a lot of lean.  Anyone that has done this, have you welded a plate or done something to give a little more height to the side stand?
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Offline diego092409

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Re: C14 rear shock
« Reply #42 on: May 14, 2014, 07:15:31 pm »
I did this mod back in February but have only recently been able to enjoy the fruits of my labor.  I turned the preload to 28 clicks and it works great with my girlfriend on the back. It was the best mod that I have done.  I just drilled out the c-10 bottom bolt to make the bushing.  It took more time to get the old shock out and decide where to mount the reservoir.  It soaks up bumps that before would have bottomed out on me and in Pennsylvania it is easy to find these spots. 

The only issue I have is that it jacks the rear end up.  I want to get some lowering dog bones so that I can the height.  But I don't have the time or money for that yet...

Offline oldsmoboat

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Re: C14 rear shock
« Reply #43 on: June 07, 2015, 09:13:44 pm »
Going to be doing this mod soon.
Where did you guys mount the pre-load adjuster?
Was the ZZR1200 bushing a direct replacement?
TIA

Offline oldsmoboat

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Re: C14 rear shock
« Reply #44 on: June 26, 2015, 01:27:49 am »
I got the C14 shock today.

Offline Benjamin

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Re: C14 rear shock
« Reply #45 on: June 28, 2015, 11:43:22 am »
Great to hear! I mounted the preload adjuster on the left passenger peg bracket.  I got a little mending plate from the hardware store to give it something to grab onto; that's the most popular mounting location.  Someone on here may have a pic.  If you can find pics of Shoodaben, SiSF's bike has the adjuster mounted as I described.

The ZZR1200 bushing is a direct replacement.  I drilled the C-10 bolt.  Please PLEASE list the ZZR1200 bushing part number when you find it; that would be a huge help to this thread.

HTH!
'92 Concours ZG1000 - "Wilhelmina" w/ ZRX front end, C14 rear shock, 2MM, GeorgeRYoung's rearsets set up, stick coils, block off plates, Murph's heated grips, Corbin seat, Madstad windshield, ATV bars, semi-nekkid, Meanie rear
'09 Versys KLE650 "Ol' Blue" - SBS (Struck By Subaru) RIP

Offline fred-houston

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Re: C14 rear shock
« Reply #46 on: June 28, 2015, 03:47:42 pm »
This is where I mounted the preload adjuster when I had the ZZR shock on the bike.

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Offline oldsmoboat

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Re: C14 rear shock
« Reply #47 on: June 28, 2015, 03:51:58 pm »
Great to hear! I mounted the preload adjuster on the left passenger peg bracket.  I got a little mending plate from the hardware store to give it something to grab onto; that's the most popular mounting location.  Someone on here may have a pic.  If you can find pics of Shoodaben, SiSF's bike has the adjuster mounted as I described.

The ZZR1200 bushing is a direct replacement.  I drilled the C-10 bolt.  Please PLEASE list the ZZR1200 bushing part number when you find it; that would be a huge help to this thread.

HTH!

This it?
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Offline oldsmoboat

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Re: C14 rear shock
« Reply #48 on: February 10, 2016, 01:33:09 am »
Bump

Offline Pbfoot

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Re: C14 rear shock
« Reply #49 on: February 10, 2016, 01:40:36 am »
OK, I was in a hurry so I didn't take pictures.  When you have the C14 shock in your hand, a written description of what needs to be done becomes clear without the need for pictures ... here's what I did

The steel bushing at the top of the C14 shock didn't fit in the bracket on the bike so I had to grind/file some width off it till it fit, I would guess less than 1/16" overall.  (less than 1/32" off each side)   The bolt used on the C14 at the top is also smaller than the one for the C10, so I chose to drill the top bolt hole in the steel bushing out, and use the stock nut and bolt from the C10.

For the bottom mounting I purchased the stock nut, bolt and bushing for the C14.  The nut and bolt were used but the bushing's outside diameter is too small to be used in the C10 needle bearings so I had one made with a larger outside diameter.
I will try to get the length, ID and OD of the bushing so if someone is going to do this they could get it made before hand.

What I have noticed so far is, now the front of the bike seems to take the bumps much worse than the back.   With the stock rear shock the front and back felt much the same when going over bumps, so I guess what I'm feeling is how much better the C14 shock smooths out the bumps.   So now I'll be looking at getting emulators for the front as a winter project.
You will love the emulators. I did that mod last year with 1kg sonic springs and a KB fork brace. very confidence inspiring.
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