2009 Yamaha F40 Outboard Service Manual, Page 229Get this manual
Power unit
Oil filter b: 18 Nm (1.8 kgfm, 13.3 ftlb)
Installing the exhaust cover
1Install new gasket a, the exhaust cover b, new gasket c, the thermostat d, new gasket e, the thermostat cover f, and the exhaust cover bolts g
Installing the oil pressure switch
1Install the oil pressure switch to the specified torque2Install the oil pressure switch lead a, and then tighten the oil pressure switch bolt to the specified torque
Oil pressure switch a: Nm (0.9 kgfm, 6.6 ftlb) Oil pressure switch bolt b: Nm (0.2 kgfm, 1.5 ftlb)