86 front fork spring rates

I had a look inside a couple of sets of 86 forks yesterday, one set was from a wr with the shorter fork and the other set from a 510 mx the mx fork had a heavier spring that had yellow paint on it and the wr spring had green paint , they were both the same lenght with the longer mx fork using spacers on the top of them. Does anyone know the rates of theese spring orcan point me to the area on the site where it may be
post or tec ref Thanks in advance