www.kawiforums.com
www.buykawasaki.com
Type in ZX6R into a search engine and you will find heaps of sites with specs and info.
When you visit the kawifroums web site there is a 'search' button there. I found a service manual link there and down loaded a service manual for my 2000 ZX6R. Mind you it was 80MB.
And on the buykawasaki website you can get good "hot deals" and browse a manual on line.
I hope this helps. Good luck, you've bought a great bike.
Corbywan
2000 ZX6R Green
Melbourne Australia