Hello, I have a 2000 WR400, I brought my bike in to the local yamaha dealer to get the fork seals done and a few other things. They told me my bike was pretty stiff so they asked for my weight to make some adjustments. I am 160 to 170lbs fluctuate when I got my bike back and went riding it just seems so springy even when I am not riding and just push down on near the back its just to easy. Does anyone know what the psi should be for that air shock deal? I am not to familiar with dirt bikes but I am pretty sure it shouldn't feel like it does. Does anyone have any suggestions? Thank you much.