compression adjusters won't move

[guardrail]

I set my suspension up last year and it works fine for me. So I don't really change any settings. But last night when I was greasing everything, I tried to turn the compression adjustment on my front shocks and they won't move. Both compression adjustments won't move. The rebound adjustments work fine. The sled is in a heated garage. I tried to spray some PB Blaster and WD-40 but they won't move. I don't want to crack the plastic knobs. I don't know when this happened because I haven't touched them since last year. Anyone else have this happen?

 

[Thewhitedogg]

Same problem for me, once I lifted the sled off the ground I was able to make the adjustment.

 

[yamahaforlife]

I also have had the same problem. I removed the the plastic knobs and used a small metric wrench (maybe a 6mm) to brake it lose. It turned fine after that. I tried to grip the knob with a pair of channel locks first but the plastic wanted to strip. With the wrench on the stud it took very little force. I hope this helps.

 

[guardrail]

Thanks guys, I'll give it a try.
I'll probably send them out to get serviced at the end of the season anyway. I was curious to see if this was common.