Engine Service Manual, Force 4-150 HP/L-Drive 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: 745987 OEM: B751-4 BS: X01763