first of all, You need to take a motorcycle safety course Like the MSF course.http://msf-usa.org/ is a link that will allow you to find one in your state.
Next, while i recommend upto a 1200 cc bike for a beginner, that's normally a cruiser, not a tour type bike that is typically heavy in the front end (Steering) and in the case of the older kawasaki, not the best engine or stopping power.
For a new person like yourself, I would suggest a cruiser bike in that size range, or a smaller cc bike if you want a crotch rocket.
Also what you did do right, is select a used bike as your first. This is because you will most likely grow to a larger size bike later. On the older bike you picked, its quite a bit older and might have mech or other problems that your not ready to handle, or being new, spot.
go to this link for suggested best begginner motorcycles, remember its a guide and you can find these bike 2-5 years old at 1/3 to 1/5 the new price. http://motorcycles.about.com/od/howtostartridin1/tp/Ten-Great-Beginner-Motorcycles.htm