Yamaha Marine Outboards F4A/F4 Factory Service Manual, Page 214Get this manual
LOWR WATER PUMP
EXPLODED DIAGRAM
WATER PUMP
M6 45 mm 1st Nm (0.3 mkg, 2.17 ftlb) 2nd Nm (0.8 mkg, 5.8 ftlb) 14 View A
6 11 13 13 12
10 M6 25 mm 1st Nm (0.3 mkg, 2.17 ftlb) 2nd Nm (0.8 mkg, 5.8 ftlb)
REMOVAL AND INSTALLATION CHART
Step ProcedurePart name WATER PUMP REMOVAL Lower unit ass'y Bolt (water pump) Plate Water pump housing Q'ty Service points Follow the left "Step" for removal4 1