Yes, there are things you should know, like punctuation and capitalization are your friends.
The stock chain is junk.
A few years ago some years had a problem with oil leaks at the cylinder/case junction. Most can be cured by installing a 2010 model year gasket. Some have claimed the cases were not machined properly.
'87s had an oddball electrical system for which replacement parts are not always available. A later model electrical system can be retrofitted, but as a cost effective solution one would need a wrecked or otherwise thrashed cheap donor bike for the necessary parts.
'87 to '00 models had a 35 watt headlight bulb, so if riding at night is in your future you'd do well to find a '01 or newer and install a Sylvania Silverstar Ultra H4 bulb. You will then have one of the most functional motorcycle headlights ever.
Other than that, there are no real deal breakers.