2009 Yamaha F40 Outboard Service Manual, Page 32Get this manual
Special tightening torque Part to be tightened Oil filter Oil pressure switch Oil pressure switch bolt Thermo sensor Exhaust cover bolt Exhaust cover anode screw Exhaust cover anode plug Exhaust cover plug Connecting rod bolt 1st 2nd 1st 2nd 1st 2nd 1st 2nd Screw size M4 M6 M5 M14 M18 M6 M8 M6 Tightening torques Nm kgfm ftlb 18 1.8 13.3 0.9 6.6 0.2 1.5 23 2.3 17.0 0.6 4.4 12 1.2 8.9 0.2 1.5 18 1.8 13.3 23 2.3 17.0 56 5.6 41.3 0.6 4.4 17 1.7 12.5 15 1.5 11.1 30 3.0 22.1 0.6 4.4 12 1.2 8.9
Crankcase bolt
Lower unit