Engine Service Manual, 72-79 O/B 45-225 HP Clymer marine manuals offer comprehensive, detailed service information for outboard motors and stern drives, with the most up-to-date coverage in the industry. Geared towards the "do-it-yourself" owner, as well as the expert mechanic, every part of the assembly process and system is covered in detail, with each book containing hundreds of photos, drawings and tables. Item: 746063 OEM: B726 BS: X01761