My rear shock is leaking. Help

3 replies to this topic
  • Outrider

Posted February 19, 2005 - 02:06 PM


Hi, my rear shock has leaked out and now I have it apart. XR650R

Here is a picture. What seal do I need to change? There is a large o-ring and a black rubber seal under the rod guide. The exploded views don't show the seal under the rod guide.

Posted Image

  • JackAttack

Posted February 19, 2005 - 02:32 PM


Hi, my rear shock has leaked out...

Mine too, I planned on taking it apart after the weekend. Please let me know your progress. :)

I planned on replacing the seals and using Maxima 5wt. :)


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • XR250rdr

Posted February 19, 2005 - 06:07 PM

#3 has tutorials on how to rebuild both KYB and Showa shocks (I cant remember which the BRP has, probably Showa). It will take you through it step by step.

I'd replace all O-rings, the piston band, seal head (of course), bladder if it popped when the seal head went, and the bottoming bumper if it has started to degrade at all.

Take extra care to bleed it well after you get it back together. Some shocks can be drilled and tapped to add a bleed screw. One of the suspension gurus (shockdoc, John Curea, etc) can give you more info on that though..

  • PeterJ

Posted February 19, 2005 - 07:44 PM


The "seal under the rod guide" is the dust wiper. The seal that holds the oil in the shock is above the wiper (or inside the seal pack). I don't think anyone sells the seal separately. I think RaceTech sells the complete seal pack.

Tips: 1. Drill a tiny hole in the side of the seal pack to bleed out all of the air that is "cupped by the seal pack". This has to be done at the proper hight. Fill and assemble the reservoir first. Then fill the shock body. Be sure to pump the shaft down fast until the compression ports bleed past the compression valve stack. Then top off the body with oil and your seal pack will self bleed before the o-ring seals in the body.

2. Pull the shock after muddy rides and clean out the area around the seal pack so dirt doesn't end up getting pounded in there and make the seal leak again.

Related Content


93 xr650l Restoration Project by Zigster

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 17 replies

Cle Elum Sunday 5/29: Looking for dual sport tips by TigerTanker

Dirt Bike   Dirt Bike Regional Discussion   Northwest
  • Hot  32 replies

DirttyPig 2005 Xr650l Prroject! by braapmebb1moretime

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 22 replies

Supercross Preview 2017 Part 1: Championship Contenders by Chris Cooksey

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  186 replies

Wiseco 101MM Spark Knock Low Engine Temps by imandrewparks

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 9 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.