YZ450f KYB SSS rebuild


7 replies to this topic
  • Yamaha211

Posted November 09, 2015 - 10:26 AM

#1

Hey guys, I've determined that I have a leak on my forks and I was hoping that I could do the labor and rebuild them myself but it sounds like I've got a axle lug that's leaking and from what I gather a suspension shop would need to do that work. Does anyone have any idea what that should run me? 

Also, what does a normal suspension rebuild/revalve cost at a reputable shop? I've never had it done before so I was curious to see what you guys are averaging to what the suspension shop quotes me.



  • cpetz24

Posted November 09, 2015 - 10:39 AM

#2

Hey guys, I've determined that I have a leak on my forks and I was hoping that I could do the labor and rebuild them myself but it sounds like I've got a axle lug that's leaking and from what I gather a suspension shop would need to do that work. Does anyone have any idea what that should run me? 

Also, what does a normal suspension rebuild/revalve cost at a reputable shop? I've never had it done before so I was curious to see what you guys are averaging to what the suspension shop quotes me.

"Axle Lug Leaking" ??  That's a new one.  Sounds like you may want to check out a different shop.  You may have seals leaking, but I've never heard of an axle lug.   Look it up on Youtube.  There's quite a few videos out there showing you how to rebuild the Kayaba stuff.  It's not incredibly hard to do, and if you have the manual you should be able to follow that also for changing out the seals. 



  • Yamaha211

Posted November 09, 2015 - 10:41 AM

#3

The axle lug is the very bottom piece of your fork that the axle goes through, as far as I understand, it's threaded onto your stanchion tube and then locked with a set screw coated in sealant and it's known to leak. There is no section in the owners manual that describes this part as being removable or serviceable .

  • GHILL28

Posted November 09, 2015 - 10:41 AM

#4

It's rare for an axle lug to leak, but it does happen.  If you have a leaky fork seal, the dirty oil will likely clump up down at the lug.

 

Clamp the flats of the lug in a vice, and see if you can wiggle the stanchion back and forth in the lug.  If you can't, it's very very doubtful that the lug is leaking and it's just a fork seal.



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  • Yamaha211

Posted November 09, 2015 - 12:37 PM

#5

Alright, thanks for the advice. I'll do that and check it out.

  • cpetz24

Posted November 09, 2015 - 02:17 PM

#6

Your right, I stand corrected.  I now know what that part of the fork is called.  Didn't realize it was called an Axle lug though. (learn something new every day!)   Did the question get answered if they are pressed or threaded onto the Stanchion tube?   My left side where the brake caliper mounts to the axle lug to took a pretty good hit from a basketball size boulder once and ever since then the brake seems to drag slightly.  I think I may have bent the mount, but had no idea that you may just be able to replace that part of the fork.  I thought it would take a whole new lower leg, which I did not want to pay for. 



  • Yamaha211

Posted November 09, 2015 - 02:42 PM

#7

Don't feel bad because I didn't know what that part of the fork was called either until this happened haha. I just got off the phone with my local suspension shop and he quoted me 160 to fix the axle lug and change the seals and new oil for the one side. 200 to throw my other one in and get it's seals and oil done at the same time. So it sounds like you can replace it if that's what you're wanting to do.

  • GHILL28

Posted November 09, 2015 - 03:05 PM

#8

It's threaded.







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