CLYMER
CLYMER 1970-1971 Yamaha XS1 REPAIR MANUAL M403
       CLYMER 1970-1971 Yamaha XS1 REPAIR MANUAL M403. The vendor part number is M403..  Read title careful to know what you are getting. Catalog decription… 
  - Save $$$ by doing the work yourself
 - Much cheaper than OEM manuals
 - Written in an easy to understand format