2000-2005 Yamaha F40B Outboard Service Manual, Page 68Get this manual
TIGHTENING TORQUES Part to be tightened Rubber mount housing Rubber mount, lower Through tube Clamp bracket (lower size) Upper casing Oil pan Oil drain plug Muffler Exhaust manifold Exhaust guide Grease nipple Part name Bolt Nut Thread size MS M12 O'ty 10 Tightening torques Nm 17.7 53.9 12.4 42 21 10.3 17.2 9.3 10.3 21 90 61 30 4.5 m-kgf 1.S 5.4 1.2 4.2 2.1 1.0 1.7 0.9 1.0 2.1 0.3 0.7 0.9 0.7 9.2 6.1 0.4 0.7 0.6 3.0 0.7 0.7 0.5 0.4 ftlb 13 40 9.1 31 15 7.6 13 6.9 7.6 15 2.2 5.2 6.6 5.2 66.4 44.0 3.0 4.3 4.4 22.0 5.2 5.2 3.3 3.0