Yamaha F100B F100C Outboards Factory Service Manual, Page 267Get this manual
Upper case (F100C) 3Install the O-rings into the shaft 74Install the gasket and cover 2, and then tighten the cover screws to the specified torque
A S60C7205 A
Checking the oil strainer
1Check the oil strainer for dirt and residueClean if necessary
Assembling the oil pan
1Install the gaskets onto the exhaust guide 1S60C7070
Oil pump cover screw: Nm (0.4 kgfm, 2.9 ftlb)