[mossman77]

I believe my 250X owner's manual may contain some misinformation regarding the rear suspension adjustments. On page 123, it says that if the bike has less than 10 mm of free sag (loaded, no rider), the spring is too stiff. This contradicts everything else I have read from multiple sources. My understanding is if you do not have enough free sag, it's because you had to add too much preload to get the proper race sag (loaded with rider) which means the spring is too soft. And if you have too much free sag, you didn't add enough preload which means the spring is too stiff. My nephew's CRF150RB manual has the exact same paragraph.

[Deanzo]

I don't have my hard copy infront of me, but I do have an e copy of the 2005 250X

Is this the paragraph ? (note this one says more than 25mm is too stiff)

"6. Calculate the free sag dimension.
To do this, subtract the loaded without rider
dimension (step 5) from the unloaded
dimension (step 2).
Free sag indicates the distance your rear
suspension should sag from the weight of the
sprung portion of your motorcycle.
With the spring pre-load set to obtain the
proper race sag, the rear suspension should
sag 10 to 25 mm (0.4 to 1.0 in).
If the rear of your motorcycle sags more than
25 mm (1.0 in) from its own weight, the
spring is too stiff for your weight. It is not
compressed enough, even though you have
the proper race sag adjustment. As a result,
the rear suspension will not extend as far as it
should."

[mossman77]

That is the paragraph I am referring to. However, in the 2007 manual, it says "if less than 10mm..." They had it right initially then made it wrong. Apparently whoever edited the manual doesn't understand sag (or I don't).

6. Calculate the free sag dimension.
To do this, subtract the loaded without rider
dimension (step 5) from the unloaded
dimension (step 2).
Free sag indicates the distance your rear
suspension should sag from the weight of the
sprung portion of your CRF.
With the spring pre-load set to obtain the
proper race sag, the rear suspension should
sag 0.4 to 1.0 in (10 to 25 mm).
If the rear of your CRF sags less than 0.4 in
(10 mm) from its own weight, the spring is
too stiff for your weight. It is not compressed
enough, even though you have the proper race
sag adjustment. As a result, the rear
suspension will not extend as far as it should.