KoubaLink.com

 DRZ2 links shown above. (1.25" rear lowering)

The most frequently asked question on the differences between the different lengths of DRZ400/KLX400 links can be found HERE

1. Raise the motorcycle with a bike stand, milk crate, etc., so the rear wheel is just slightly off the ground. Remove the two 17mm nuts that hold the links to the rocker and the swingarm and push the bolts out. Sometimes the swingarm needs to be raised to allow the link bolt head on the swingarm end to clear the chain, so remove the rocker bolt first.

2. Push the four bushings out of the stock links with a 16-18mm punch or bolt, and reinstall them in the Kouba Links with the washer part on the inside (opposite side of the engraving). When installing the Kouba Links, (engraving to the outside) be sure the thin stock washer on both ends of the rocker and swingarm mounts are over the bearing sleeve, and are pressing against the seals before the link mounting bolts are tightened.

3. Set the sag (amount of vertical movement of the rear axle FROM no weight TO bike weight plus rider weight) at 2.5" inches with the DRZ2/3 links, OR 3.25" with the DRZ1 links, with rider in full riding gear, standing on the pegs. If the links are for lowering purposes ONLY, sag is set at 3.75", and will lower the rear of the bike approx. 1.75" with the DRZ3 links, 1.25" with the DRZ2 links and 3/4" with the DRZ1 links. The front forks can be slid up in the triple clamps .5" until they contact the handlebars. For additional lowering of the front, a second set of the top halves of the handlebar clamps can be installed under the bars and tightened with 3/4" longer bolts, and will allow the forks to be slid up an additional 3/4", but be careful, that may allow the front tire to hit the fender if bottomed.

 * Less rear sag = quicker steering less stability.  More sag = slower steering more
stability.  The easiest way we have found to adjust the rear spring preload/sag, is 
to use a long punch (we use a piece of 1/4" X 12" steel keyway stock, rounded on
one end) to loosen the top jam nut, then grasp the spring at the bottom and turn
the spring and the preload nut at the same time. Turning the spring/nut clockwise
increases the preload and decreases the sag.  Do not forget to tighten the top jam nut with the punch after setting the sag.

Disclaimer: Lowering the rear more than the front will change the geometry and could affect the handling.

4. For the stock DRZ400 kick, "E" and 02 up "S" model shock, set the compression and rebound clickers to their mid positions (basically stock settings). On the 2000-2001 DRZ400 "S" model, set the compression clicker to mid position, and forget about the rebound clicker as it did not get the external rebound clicker option until 2002. If bottoming is a problem, try turning the compression clicker in (clockwise). All 02 up models have a high and low speed compression adjuster/clicker. The outer hex nut adjuster (high speed) controls bottoming and the inner clicker controls the smaller hits.

If the compression adjustments are not enough, a stiffer spring may be required. These clicker settings are just a starting point and may not be the best for everyone, so experiment with them and find the best settings for you and the conditions.

If you like what the KoubaLinks do for your suspension, please tell everyone. If you do not, please tell us. We can be contacted at our e-mail address below and are always interested in your questions or comments.
 

            Ordering information and pricing can be found on our ORDER FORM.