2009 Yamaha F40 Outboard Service Manual, Page 360Get this manual
General Periodic Maintenance 8Remove the gear oil pump, and then install new gasket and the drain screw b 0 2
9Tighten the check screw and the drain screw to the specified torqueCheck screw d: Nm (0.9 kgfm, 6.6 ftlb) Drain screw b: Nm (0.9 kgfm, 6.6 ftlb)
2Apply low temperature resistant grease to the specified area