Yamaha Marine Outboards F4A/F4 Factory Service Manual, Page 220Get this manual
LOWR EXPLODED DIAGRAM
LOWER CASING CAP ASS'Y, REVERSE GEAR AND PROPELLER SHAFT E
LOWER CASING CAP ASS'Y, REVERSE GEAR AND PROPELLER SHAFT
M6 16 mm Nm (0.8 mkg, 5.8 ftlb) 2