Sag. How much ?
Posted October 28, 2000 - 04:29 PM
Posted October 28, 2000 - 05:05 PM
Posted October 29, 2000 - 07:10 AM
86TT225, 98CR80, 99WR, WR timing, throttle stop trimmed, air box lid removed, White Bros head pipe, silencer and air filter. Odometer and headlight removed. Moose hand and mud guards. YZ stock tank and IMS seat. Renthal Jimmy Button "highs" and Renthal Soft half waffle grips. AMA, SETRA.
Posted April 27, 2004 - 07:52 AM
If the spring is too light you will have to add spring pre-load and the result is no unloaded sag.
If the spring is too light you will have to remove spring pre-load and the result to too much un-loaded sag.
Also keep in mind that the Yamaha Manual for the 1998 WR400 indicates the stock spring are set for a 160 pound rider. That was a lot of quater pounders ago.
Lastly, make sure that you consider the overall suspension balance. If you change the rear spring to get the correct sag, you may need to also replace the front.
A lot of post on this site recommend Race Tech as a guide to spring selection (www.racetech.com)
Posted April 27, 2004 - 12:16 PM
Thanks, it makes sense now that you explain it.