That's a great link Joe. Maybe you can explain how to make a home made sag scale. Otherwise, he can get at motosportoutlet.com for about $22.00 Even though mine is set, I think I'll buy one just for sh!ts and giggles
Home made sag scale-
Get a steel yard stick(or any thin straight piece of metal or a wooden yardstick can be used)from Home Depot for about $3.
Drill a hole in one end 3/8" diameter.
Insert a 3/8" bolt in the hole and put some silicone or other adhesive around the bolt head/shank where it comes thru the hole to lock it in place.
Mark the other end in 10mm increments with a permanent marker.
Thats it, you now have an cheapo sag scale.
To use insert the bolt in the open end of the axle and read your sag setting from a convenient point on the fender above the axle. WR 450s use 100mm of sag for most riders. So to check sag lift the bike enough to top out the suspension and read the scale then have the rider sit on the bike(preferably in full riding gear
)while some one else balances the bike so the riders full weight is on the bike and read the scale again. The difference is your race sag setting. Adjust the spring preload as needed to get the sag right.