Hello ledpencil,
Pneumatic bike shocks require a special type of pump called a "shock pump" that is a high-pressure (up to 300psi!) but low-volume pump. They come with a very accurate gauge, pump handle, and a bleed valve/button to let off puffs of air to soften the shock. They also have a long flexible neck that screws onto the valve at the base of the fork. They're relatively small and moderately priced ($20-$40) and can be packed in a riding pack in case you want to change the stiffness on the fly. Here's a link to some online: http://www.jensonusa.com/store/sub/292-Pumps+And+Co2+Inflation-Shock+Pumps.aspx?s=1559&mfg=0&closeoutHotdeal=&use=&sort=Default&show=25&pricemin=0&pricemax=100 Hope this helps!
-The Chicken
Usually not possible to ID bike from serial# alone. Unless it's been repainted and decals removed the best way to tell is to search for the make and model at BikePedia You can then generally figure out the year from the paint scheme and equipment. I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881
Hello Trey,
If it's recent, the serial number is on the frame under the crankshaft, if it's older it may be other places. . . look here for older ones:http://vintagecannondale.com/info/.
Thanks!