Author Topic: C14 rear shock  (Read 15156 times)

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Offline turbojoe78_MA

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C14 rear shock
« on: June 26, 2011, 07:28:21 pm »
Hello all,
I just purchased a C14 rear shock and I was looking for some info on what modifications I need to do to install it.
I haven't been following the site for a while and see it has changed allot from last fall. (when I purchased a boat with no motor that had been my focus till now)

I did a search on the forums and can't find any of the information on what people have done to install a C14 shock on a C10.
I also have a lowering link to install with it.

If anyone could give me a heads up on what I might need for different hardware or anything I will need to modify that would be great. (or how or where I could do a search to find it)

Thanks
Joe C
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #1 on: June 27, 2011, 09:07:28 pm »
Is there no way to get to the old threads?

I thought I remembered something about having to drill something out and using a combination of C10 and C14 mounting hardware.

I don't have the shock yet, so I don't know if it will have any of the mounting hardware with it.

I'm just trying to get my ducks in a row so when I go at it there will be no surprises.

Is there a way to get to the old threads from concours.org?
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline WillyP

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Re: C14 rear shock
« Reply #2 on: June 27, 2011, 09:45:59 pm »
Is there a way to get to the old threads from concours.org?

No.
Smart people look like crazy people to stupid people.
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Offline Slybones

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Re: C14 rear shock
« Reply #3 on: June 28, 2011, 12:09:07 am »
If we can get all the instructions posted in here, I'll make a tech page for it.
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Offline JTTF

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Re: C14 rear shock
« Reply #4 on: June 28, 2011, 01:19:22 am »
when you get the shock call out, peace of cake. duck in a circle  ::)

Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #5 on: June 28, 2011, 01:45:00 am »
Shock is due to deliver on Friday the 1st, any info I can get before then would be great.

Joe
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline Camper Dave

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Re: C14 rear shock
« Reply #6 on: June 28, 2011, 01:51:43 am »
 ^-^ Joe!

I was just thinking about you today.
Figures you'd be making another mod  :beerchug:
How's the lobsta hunting this year?
Hope all is well!

Ohh, I'm not sure if it will help you... But the wayback machine goes back to Jun 2009, nothing newer than that... It's not very searchable, but you can page thru all the old topics and read em...
http://web.archive.org/web/20090620175404/http://forum.concours.org/index.php?
« Last Edit: June 28, 2011, 01:59:05 am by Camper Dave »
<--- is there any mechanism in place to deal with a non- productive, antagonistic, former non- member such as this?

Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #7 on: June 28, 2011, 01:56:01 am »
Dave,
Trailer is still working great, 9 lobsters last time out ... hoping for more this weekend!

Joe
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #8 on: July 05, 2011, 09:03:44 pm »
Got the shock last Friday.

So far from what I have found out, it looks like I use the mounting hardware from the C10 at the top of the shock and I have to grind, or file a little off of each side of the steel bushing at the top of the C14 shock to fit it in where it mounts to the frame.

The bottom mounting I still need help with.

It looks like I need the mounting hardware for the C14 at the bottom.  There's a bolt and a steel sleeve that go through the needle bearings on the C14.   Does anyone know if the steel sleeve from the C14 fits the needle bearings on the C10?

If the steel sleeve from the C14 fits the needle bearings on the C10 then I would just have to buy the nut, bolt and steel sleeve for the C14 and find some washers to take up the side to side space as the C14 shock is wider than the link it mounts to.

If anyone remembers how they mounted the C14 shock at the bottom let me know if I'm on the right track so I can "Git-er-Done"

Thanks Joe
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline JTTF

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Re: C14 rear shock
« Reply #9 on: July 06, 2011, 07:26:21 pm »
yes your right on track, bolt and sleve from c-14 on bottom, on top you have to bore/drill the top hole to 12mm to use c-10 bolt as the hole in c-14 is 10mm, some just use the 10mm bolt on top also, or you can press the bushing out of both shocks and press the bushing from c-10 into c-14 shock

Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #10 on: July 06, 2011, 07:46:28 pm »
Parts have been ordered from Ron Ayers for bottom and I'll probably drill out the C14 shock to accommodate the C10 bolt for the top.

I'll let everyone know how it went when I get the parts and put it all together.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline Uglydog56

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Re: C14 rear shock
« Reply #11 on: July 08, 2011, 06:10:02 pm »
I just used the 10mm bolt in the top, it doesn't move.  I had to just touch the top with a grinder to get it to slide in; some people haven't.  In the bottom, I had a buddy in the machine shop at work make me a 10mm x 20mm x 30mm bushing.  I worked grease into the needle bearing before I put it together; worked good.
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Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #12 on: July 20, 2011, 01:15:15 am »
Went to install the shock today and found as Uglydog56 said, I will have to get a custom bushing made for mounting the bottom.  The bushing for the C14 is obviously the correct inside diameter for the C14 lower shock nut and the right length, but the outside diameter is too small to fit the needle bearings in the link the shock bolts on to.

Oh well, now I just have to find a machine shop to make my C14 to C10 rear shock custom bushing.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline John_Atkinson

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Re: C14 rear shock
« Reply #13 on: July 20, 2011, 01:17:17 pm »
not to hijack the thread, but I know there are several options for the C-10 shock upgrade:

1)  C-14
2)  ZZR1200
3) Progressive (465?)
4) Wilbers

I have heard (old forum?) that the Wilbers is the best of all of these, but can be rather pricey.

Any thoughts as to the pros and cons of the various alternatives?
John Atkinson
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Offline JTTF

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Re: C14 rear shock
« Reply #14 on: July 20, 2011, 11:00:22 pm »
If you have the stock c-10 bottom bolt you can fabicate the lower bushing from it, remove the grease fitting, drill a 10mm hole all the way through, cut the nut side off, than the threaded side off, or bring bolt to machine shop and let them do it.

Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #15 on: July 21, 2011, 09:07:27 pm »
First machine shop I called said to bring it in ... but ... we have a minimum charge for work ... $100.00!!!
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #16 on: September 29, 2011, 10:04:37 pm »
Finally got my bushing from our machine shop at work today, for a non-required $20 gratuity.

I hope to be installing it soon and will try to take pictures and give a description of the work I've done to install it, so others who follow will have guidance.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #17 on: October 06, 2011, 08:40:42 pm »
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.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline JTTF

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Re: C14 rear shock
« Reply #18 on: October 06, 2011, 10:24:55 pm »
If you feel the rear is too high a lowerring rocker will get you back down to almost stock and take some weight off the front, I have one listed in eporium if you deside you may want to try . the c14 is nodout super smooth over bumps i know

Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #19 on: October 06, 2011, 11:41:41 pm »
JTTF, I think it was you I bought a lowering link from last year, hoping to find a C14 shock to use with it for a good price.

About two weeks after I paid $250 for the one I have from ebay, one showed up for $200.

I have the lowering link installed with the shock now and am loving the combination.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline RWJC

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Re: C14 rear shock
« Reply #20 on: February 24, 2012, 08:01:23 am »
found this topic, and instead of starting anew, thought I would just add...

I am geting a used C14 shock...and am just a tad confused by the posts...the top will need to be ground slightly to fit the C10 top mount, and use the C14 or C10 mounting bolt to attach??

The bottom, since I have a 33.5" inseam will not lower the shock at first. I can touch flat footed and knees bent on OEM @ 45psi.

JTTF  stated the C14 bolt/sleeve can be used on the bottom with no other mods? What is the OEM size bolt on the C10, local dealer has no clue?
« Last Edit: February 24, 2012, 05:15:50 pm by RWJC »
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Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #21 on: February 25, 2012, 09:51:49 pm »
The top of the C14 shock may, or may not need to be made thinner side to side to fit into the shock mount bracket of your bike.  (mine did need to be ground down about 1/32" off each side of the steel bushing at the top of the C14 shock to fit in the mounting bracket.)

The bolt for the top mount of the C10 shock is 12mm, and the bolt at the top of the C14 shock is 10mm.  Some have used the 10mm bolt for the C14 shock and say it works just fine.  I chose to drill out the steel bushing at the top of the C14 shock to accept the 12mm bolt from the C10 shock so there would be no chance of excess play should the nut an bolt loosen up.

At the bottom mount I had a custom bushing made and used the C14 bottom shock mounting nut and bolt.  The bushing needs to be made to the same length as the C14 bushing, I.D. is the same as the C14 to accept the C14 bolt, and the O.D. needs to be made the same size as the bolt/bushing used on the C10.

I will look tomorrow to see if I can find the C14 bushing and the C10 bolt/bushing and get some measurements for you.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline RWJC

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Re: C14 rear shock
« Reply #22 on: February 25, 2012, 10:30:35 pm »
I heard from a very knowledgable sour the ZZR1200 bushing & bolt is a "bolt" on... ::)

I just ordered the ZR1200 bushing from Kaw today, and should be in about the same time as my shock. I have a backup plan if not.

Those measurement would be helpful if not too much trouble.
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Offline turbojoe78_MA

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Re: C14 rear shock
« Reply #23 on: June 03, 2012, 01:11:40 am »
found this topic, and instead of starting anew, thought I would just add...

JTTF  stated the C14 bolt/sleeve can be used on the bottom with no other mods? What is the OEM size bolt on the C10, local dealer has no clue?


The bushing needed at the bottom to mount the C14 shock to the C10 linkage needs to be between .397" and .403" ID, .886" OD and between 1.276" and 1.279" in length.   With a bushing that size you use the stock C14 lower mounting nut and bolt and all will be good.
1968 Honda 160 Scrambler,  Sold / 1979 Kawasaki SR 650, Traded in for next one,  1978 Kawasaki KZ 1000 Z1R Turbo Sold / 1986 Kawasaki ZX 1000R Ninja Sold / 1999 Kawasaki Concours Sold / 2014 Kawasaki Concours


Offline Edward

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Re: C14 rear shock
« Reply #24 on: August 14, 2013, 10:48:51 pm »
Resurrecting this thread, RWJC, did you find that the ZZR bushing and bolt nullified the need for a custom bushing?

Considering this mod but want to figure out how much work it's going to take as the projects for this toy are stacking up.