2000 ZX12R Care, Known issues and just basic info.

So I just picked up a 2000 Kawasaki ZX12R in pretty nice condition, I am making this post to kind of see what information is out there on it. The bike is currently running hot for me after doing some research am thinking of wrapping the headers and checking the thermostat. Have rode it about 2 months now and have had no issues but the bike overheated on me in rush hour the other day. Wasn't really a hot one by any means either, really bad traffic and a good amount of lights. I live in a pretty dense area, so thinking of doing a header wrap and maybe going a little further back to try and reduce some of that heat on the engine. Will be flushing, filling, burping and then checking tomorrow and will post an update. Other than the heat in traffic absolutely amazing bike. Always wanted one. If anyone has suggestions let me know. I was told to run engine ice, distilled water and water wetter mix.