2020 250rr rearshock problems

[mic77]

Hi,i have a 2020 250rr which I got with 10hours on it, it had the stock 5,2 rear spring. My weight is about 70kg with gear so I tried it out but only got about 60mm racesag with minimum preload.
So i ordered a 4,8 spring and had It fitted, tested and got 60mm again.
Figured there must be a problem with the linkage, took everything apart and greased it up, loosened the chain and tried again, 60mm.
Then in desperation I ordered a 4,4 spring, still 60mm, so I am pretty sure that is not the problem

Im starting to get pretty annoyed with this, I don't like the stiff feeling of the rearshock and I would like to get the bike somewhat properly setup for my weight.
Any one that has any ideas?
There are two bushings in the linkage that I did not remove, can these be a problem? I figured the worst problems would be caused by bad linkage bearings.

[aj_mariner]

Check your rebound setting at the bottom of the shock. mine somehow turned all the way clockwise and sag wouldn’t budge

[mic77]

Thanks, i will check this after work tonight.

[wwguy]

Suspension linkage definitely should be verified to be in good working order before attempting to set sag values. This should be easily verifiable by observing how the suspension responds to the rider bouncing weight up and down on it a few times before taking sag measurements.

Forget about "minimum preload" (whatever that is.) Start with the spring specified for your riding weight, then adjust the preload collar as necessary to obtain the desired rider/race sag measurement. Once rider sag is set you can then measure the free/static sag value to determine if the spring rate is a bit soft, stiff, or just right.

For example: Install the 5.0 kg spring on the shock and then adjust race sag via the preload collar to roughly 1/3rd of suspension travel (e.g. between 95 to 105mm race sag.) Then measure the static sag without the rider onboard. If the spring rate is correct, then static sag should be 30mm to 40mm. If static sag is more than 40mm then your spring is too stiff. If static sag is less than 30mm then your spring is too soft.

[mic77]

My problem is that i cant achive the right sag even with a spring that is softer then specified for my weight, im going to remove the spring and re install the shock to see if there is any problem when moving everything without the spring, because something is not working as it should.
I have already checked and greased every part of the linkage and it feels very smooth when it moves.