Abull1499,
Log in to ZR-1.net and you will be able to find a good "pre-purchase" checklist that covers most of the common issues to look for on these cars.
A couple of the members here have also posted checklists. Do a search on the forum and you should be able to locate them.
Good luck with your search and be sure to run any questions by the guys & gals here. You will get good knowledgeable advise.