There is a download somewhere on a Russian website for a PDF manual thing that only works well under Windows, on Linux it acts a bit odd but is still usable, it is copied from a 1995 manual but may still suit your needs.
I'm not sure what year you have but I have a website that covers how to remove the Timing Belt for the 99 Suzuki Esteem 1.6 liter engine, you will need to get at least get that far to remove the head although you will still need to remove the ignition and valve train assemblies.
http://home.comcast.net/~lj_robins/99suzuki/
Don't use that seal leak stuff, like someone else said it will fix your problem temporarily but will end up plugging up something else you don't want plugged up.