+ Reply to Thread
Results 1 to 28 of 28
  1. #1
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    KYB shock rebuild, who stole my Schrader valve?

    My right shock started leaking a little bit ago so I decided to rebuild them. Spoke with Racetech and ordered seals and bushings for the job. When I took the shocks apart this evening I found something missing...I was expecting a Schrader valve under the reservoir cap but instead I got this:
    Name:  20130820_213209.jpg
Views: 4430
Size:  49.2 KB

    What I thought was going to be an evening of work will now be a week or so waiting for parts, guess no riding this weekend
    No worries, I figure I will just replace the bladder cap with this one from Racetech:
    Name:  SMRC_200.jpg
Views: 3387
Size:  5.5 KB

    but, I do want to know if anyone has done this rebuild before; logic says to just punch the center of the nipple (aimed away from my face of course) in order to release the nitrogen, am I wrong? Oh and suggestions on shock oil KYB-K2C($$$), Maxima 5wt($$), Mobil1 ATF($). I am thinking I will need about 2 quarts.

    Thanks for the comments,
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  2. #2
    CRACKERMAN
    Join Date
    May 2010
    Location
    Nanticoke, PA

    KYB shock rebuild, who stole my Schrader valve?

    What's under the other side?
    Quote Originally Posted by John T View Post
    Isaac is NOT a zrx purist.
    #8905

  3. #3
    BadAss Hooligan
    Join Date
    Feb 2003
    Location
    Seattle

    Re: KYB shock rebuild, who stole my Schrader valve?

    Can't speak to the release, but can relay that the '99-'00 shocks came with schrader valves, but the later bikes did not. There are other threads on here about that, and about how much nitrogen to put in the shocks. I'm surprised Racetech put together a seal set, as I thought it wasn't available.

  4. #4
    Living proof that begging does not work
    Join Date
    Dec 2008
    Location
    Grants Pass Oregon

    Re: KYB shock rebuild, who stole my Schrader valve?

    I had GP suspension in Portland rework mine about 1.5 years ago. $120.00 for the pair. He said 150 lbs in each. I had 5 lbs in one and 0 in the other.
    ZRXOA#8575

  5. #5
    BadAss Hooligan
    Join Date
    Mar 2006
    Location
    Missouri

    Re: KYB shock rebuild, who stole my Schrader valve?

    Dano got it -

  6. #6
    Kaptain Krylon
    Join Date
    Sep 2001
    Location
    Lancaster, SC

    Re: KYB shock rebuild, who stole my Schrader valve?

    http://www.zrxoa.org/forums/showthre...-repaint/page6

    It's been a long time, and I don't remember much about how I did the job, or claim to know what I am doing, but 2 years and 10k miles later after my rebuild they worked well and were leak free.....



  7. #7
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by BDsbigZRX View Post
    http://www.zrxoa.org/forums/showthre...-repaint/page6

    It's been a long time, and I don't remember much about how I did the job, or claim to know what I am doing, but 2 years and 10k miles later after my rebuild they worked well and were leak free.....
    Thanks for the link, I laughed when I saw the mangled end cap. Those suckers were no joke, especially when trying not to damage the aluminum res.
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  8. #8
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by cavemanrex View Post
    I had GP suspension in Portland rework mine about 1.5 years ago. $120.00 for the pair. He said 150 lbs in each. I had 5 lbs in one and 0 in the other.
    Wow, that's not a bad deal. I've got $60 in the seals and bushings, adding $100 for the new bladder caps and new bump stops, the old ones were fully disintegrated into a crumbly oily mess at the base.

    Expect with oil and recharge I'll be in the $200 range, but that's 200 dollars worth of wrenching fun!
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  9. #9
    BadAss Hooligan
    Join Date
    Feb 2003
    Location
    Seattle

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by imrem View Post
    Wow, that's not a bad deal. I've got $60 in the seals and bushings, adding $100 for the new bladder caps and new bump stops, the old ones were fully disintegrated into a crumbly oily mess at the base.

    Expect with oil and recharge I'll be in the $200 range, but that's 200 dollars worth of wrenching fun!
    Here's their current pricing from http://www.gpsuspension.com/services/ :
    Shock Labor: $140.00
    Shock Oil: $10.00
    Shock Nitrogen: $10.00
    OEM Shock Seal: $16.00 ( Showa, KYB Shocks )
    OEM Dust Seal: $10.00 ( Showa, KYB )

  10. #10
    BadAss Hooligan
    Join Date
    Jul 2008
    Location
    METAAL!!!!!!

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by Copyguy View Post
    Here's their current pricing from http://www.gpsuspension.com/services/ :
    Shock Labor: $140.00
    Shock Oil: $10.00
    Shock Nitrogen: $10.00
    OEM Shock Seal: $16.00 ( Showa, KYB Shocks )
    OEM Dust Seal: $10.00 ( Showa, KYB )

    This is the Per Pair price?



    Mo bhuanghra', Mo Gluaisrothar

  11. #11
    BadAss Hooligan
    Join Date
    Feb 2003
    Location
    Seattle

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by SonicGuppy View Post
    This is the Per Pair price?
    Good question, don't know, but Cavemanrex said he had a pair redone for $120 all in 1.5 yrs ago, so I assume that's for the pair.

  12. #12
    BadAss Hooligan
    Join Date
    Jul 2008
    Location
    METAAL!!!!!!

    Re: KYB shock rebuild, who stole my Schrader valve?

    Doesn't look like their E-Mail's working. I'll call later.



    Mo bhuanghra', Mo Gluaisrothar

  13. #13
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    It seems these KYB shocks use a self-sealing rubber valve. They are used on the ZX11 factory shocks as well.

    I found this tool on racetech's website:

    Name:  TSNN-01-WEB.jpg
Views: 4387
Size:  89.7 KB

    I decided to go ahead and order the new bladder caps with the traditional schrader valves, I think I'll have an easier time getting them refilled.
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  14. #14
    Devils’ Advocate
    Join Date
    Aug 2001
    Location
    Large and Prickley

    Re: KYB shock rebuild, who stole my Schrader valve?


    ooooooooooooo

    WARNING: ELS Products MAY CONTAIN, or be Made With, Patented Parts, Tools, Components and/or Apparati. Manufacturing Facility DOES Contain Nuts.

    PayPal to: Pete@Hyper-Formance.com
    Or: www.PayPal.me/KWICK
    Pete Aronson
    315 West Elliot Road
    Suites 107-487
    Tempe, AZ 85284
    602-397-4869.

  15. #15
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by KWICK View Post
    Thanks KWICK, I found this guide a few weeks ago and have been using it. I was surprised to find no schrader valve though as I was expecting from the pics. I think the blue racetech bladder caps will add a nice touch to the rebuild since I don't plan on replacing the chrome reservoir end caps.
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  16. #16
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    I depressurized the reservoirs with a 23 gauge needle tip I got from Walmart for a whopping 13 cents.
    Name:  20130824_215257.jpg
Views: 3512
Size:  197.8 KB


    I got out of having to grind the peened end of the shaft by removing the lower bracket and bolt. These where originally secured with locktite.
    Just had to make sure when I reinstalled the bracket the rebound adjustment was properly aligned.
    Name:  20130824_224745.jpg
Views: 3796
Size:  148.6 KB

    Had a bit of a headache getting the bushings out of the seal heads. I had to drill the suckers out since I couldn't just pound 'em out. They were really in there!
    Name:  20130825_000133.jpg
Views: 3441
Size:  178.3 KB

    Remaining bits of the drilled bushings.
    Name:  20130831_170532.jpg
Views: 3148
Size:  140.7 KB

    The racetech bladder caps look sharp, glad I went with them.
    Name:  20130831_170640.jpg
Views: 3317
Size:  140.5 KB

    Installed.
    Name:  20130831_170713.jpg
Views: 3213
Size:  227.3 KB

    All done!
    Name:  20130831_204201.jpg
Views: 3152
Size:  183.4 KB
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  17. #17
    BadAss Hooligan
    Join Date
    Aug 2008
    Location
    oakland county michigan

    Re: KYB shock rebuild, who stole my Schrader valve?

    We need a ride report. Oil type . Nitrogen pressure?

  18. #18
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by compressor59 View Post
    We need a ride report. Oil type . Nitrogen pressure?
    Filled with a Honda racing 5wt oil, just because it was half the cost of the KYB-K2C oil.
    Plain old air in them now, but already feels like night and day compared to what I had.
    Will get them charged with nitrogen on Tuesday after Labor Day. I'm planning on 150 psi.
    I've read most range from140 to 175. Showa usually 170 range while kyb 150 range.
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  19. #19
    Super Moderator
    Have guns.
    YOU travel.

    Join Date
    Jan 2004
    Location
    Loveland, CO..

    Re: KYB shock rebuild, who stole my Schrader valve?

    Interesting read. I just found oil on mine tonight.

    Colorado Springs, eh?
    “I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do.”
    ― Robert A. Heinlein

  20. #20
    Licensed to Mod
    Join Date
    Mar 2011
    Location
    Colorado Springs

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by GA Limited GM View Post
    Interesting read. I just found oil on mine tonight.

    Colorado Springs, eh?
    Yup, southern end near Fort Carson. If I had to do it over again I think I would just buy the compete seal head assys. They can be had for 60-70 bucks each.
    These kyb shocks use seal heads of (o.d-i.d.)36-12.5mm.
    Doing it that way I'd get fresh every thing, o rings, dust seal, etc. and not just the oil seal and bushing. Add in the fancy bladder caps and you're right around 200 or 140 if reusing the factory caps with self sealing valves. They just aren't as pretty.
    ZRXOA #9004

    Bikes current:
    '02 ZRX1200R
    '04 ZR7-S

    \Bikes past:
    '01 SV650S
    '03 Vulcan 1600 (really miss this one)...
    '84 CB650SC Nighthawk

  21. #21
    ZERO
    Join Date
    Dec 2005
    Location
    St. Petersburg, FL

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by imrem View Post
    Yup, southern end near Fort Carson. If I had to do it over again I think I would just buy the compete seal head assys. They can be had for 60-70 bucks each.
    These kyb shocks use seal heads of (o.d-i.d.)36-12.5mm.
    Doing it that way I'd get fresh every thing, o rings, dust seal, etc. and not just the oil seal and bushing. Add in the fancy bladder caps and you're right around 200 or 140 if reusing the factory caps with self sealing valves. They just aren't as pretty.
    IMREM, Good Read! The Crazy thing is "Every" Thread I have read and my friends ZRX "ALL" have the right side Shock Leaking! (Must be from the Exhaust Heat)! I just got a Used set that have Bad Rubber Bump Stops that I need to replace. What was your Experience with getting the ends off of the Shafts and getting the ReBound Adjustor correctly Located??
    Made History at Daytona and Still One Fast Old Man

  22. #22
    BadAss Hooligan
    Join Date
    Nov 2010
    Location
    Shiny Side Up ^

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by Vincent Hill View Post
    IMREM, Good Read! The Crazy thing is "Every" Thread I have read and my friends ZRX "ALL" have the right side Shock Leaking! (Must be from the Exhaust Heat)! I just got a Used set that have Bad Rubber Bump Stops that I need to replace. What was your Experience with getting the ends off of the Shafts and getting the ReBound Adjustor correctly Located??
    http://www.youtube.com/results?searc...spring+removal
    Big Harry

    "As you swim the river of life, do the breast stroke. It helps to clear the turds from your path!"
    George Carlin

  23. #23
    BadAss Hooligan
    Join Date
    Mar 2011
    Location
    White Salmon WA USA

    Re: KYB shock rebuild, who stole my Schrader valve?

    Had mine rebuilt by Jamie Daugherty and he also recommended 150 psi of nitrogen.
    The 1100's have a Schrader valve, later ones had the needle type.

    http://daughertymotorsports.com/zrx1200.html

    $250/set including return shipping for revalving with his rebound valve, oil, and nitrogen. I also had proper springs for my weight - Hyperco - nice
    The springs swapped out are another $125/set if you want/need.

  24. #24
    ZERO
    Join Date
    Dec 2005
    Location
    St. Petersburg, FL

    Re: KYB shock rebuild, who stole my Schrader valve?

    Thanks Harry!! Also we all know that there is "ALWAYS" something not mentioned that can bite you! When I heard from the person that started this thread, he stated that there are some "Ball Bearings" size balls that allow the Detent on the Rebound Dampening Adjustor that may fall out. I do have several tools for compressing the springs, so I am OK there.
    Made History at Daytona and Still One Fast Old Man

  25. #25
    BadAss Hooligan
    Join Date
    Jul 2008
    Location
    METAAL!!!!!!

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by cavemanrex View Post
    I had GP suspension in Portland rework mine about 1.5 years ago. $120.00 for the pair. He said 150 lbs in each. I had 5 lbs in one and 0 in the other.
    Got around to calling GPSuspension today. They quoted 190.00 plus parts. I mentioned that their email doesn't work.

    # 253.397.4474



    Mo bhuanghra', Mo Gluaisrothar

  26. #26
    Licensed to Mod
    Join Date
    Feb 2018
    Location
    Gijon-Spain

    Re: KYB shock rebuild, who stole my Schrader valve?

    Hi there.
    How did you take out the outer cup?
    Thanks.
    Alfredo

  27. #27
    2009 Hooligan of the year
    Join Date
    Sep 2001
    Location
    Austin, TX

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by ALFREDO View Post
    Hi there.
    How did you take out the outer cup?
    Thanks.
    Alfredo
    Drill a small hole, screw in a sheet metal screw and use the screw to remove the cap with a pair of pliers. Or you can insert a screw driver in the hole and pry the cap off.

  28. #28
    Licensed to Mod
    Join Date
    Feb 2018
    Location
    Gijon-Spain

    Re: KYB shock rebuild, who stole my Schrader valve?

    Quote Originally Posted by zrx24 View Post
    Drill a small hole, screw in a sheet metal screw and use the screw to remove the cap with a pair of pliers. Or you can insert a screw driver in the hole and pry the cap off.
    Thank you ver y much. I got it and already purchased the caps from Race Tech. Thanks indeed.


 

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Powered by vBulletin® Version 4.1.7
Copyright © 2019 vBulletin Solutions, Inc. All rights reserved.
All times are GMT -4. The time now is 08:11 AM.
vBulletin 4.0 skin by CompleteVB