The right auger on my snowblower spins freely. The left side works fine. Is this an easy enough fix? Manuals available? Are there repair guides that I could look at?

Look for a broken shear pin on the right auger. Shear pin is just a soft metal pin that goes through the auger and the drive shaft. Designed to break before the damage to auger or drive shaft in case a rock gets caught in auger. Easily replaced.