hi there
a good choice you made there.
the engines are basicly the same, there are minor changes over the years.
your bike is probably a 1J7....
have a look at this site, there you will find a parts manual and also parts to buy, the manuals are free.
http://www.cmsnl.com
then you should try these 2 links aswell, you will find a welth of info there.
http://www.yamaha-triples.org
if you need any more help then please ask.
schlumpf