SubaruXTWiki
88FSMScans

The 1988 FSM manuals for the XT and XT6 have been scanned into PDFs.

They can be found here (mirror)

It would be useful to have a hyperlinked table of contents to the PDFs. - cvk

If you wish to have paper copies of these books, Subaru of America still has copies of the 1991 edition available. Use Part Numbers (TBD) when ordering.