You can't make an actual, normal installer disc of any Mac OS unless you copy an existing installer disc.

With OS 9 you can make a copy of the System Folder, burn it to a CD, whatever you want, and it will be bootable when you copy it back to a hard drive, i.e. a manual install. Making the CD bootable from the System Folder is sometimes tricky when you burn it from Mac OS X. Your chances are better at making the disc bootable if you burn it using Toast in Mac OS 9.