I need to respring and possibly revalve the suspension (forks and shock) on my 2012 WR450F. I am planning to start with replacing the springs and leaving everything else stock and seeing what I have. However, I would like to pull the dampers apart to get dimensions to input into the Restacker program. The bike is pretty new, I wasn't planning on replacing the bushings and seals. I'll get them next time. What tools and parts do I need ? I don't see a Shraeder valve on the shock damper. How do I add one ?