2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 319Get this manual
7TIGHTENING TORQUES 1) SPECIFIED TORQUES (EXCERPT)
Part to be tightened POWER UNIT Anode MNT bolt Anode plug CDI unitIG coil bolt Con-rod cap bolt 1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd 3rd Thread size M5 M16 M6 M6 M6 M8 M6 M9 (M30) M8 1st 2nd M6 (M16) (N20) M20 PT18 M5 M12 (M6) M8 M14 1st 2nd M8 (M8) (M10) M6 M8 M8 M6 78 UNF M8 (M10) Nm 18 12 12 14 27 12 15 29 110 22 12 108 18 40 17 14 27 27 27 25 17 32 18 19 30 56 Tightening torques kgfm ftlb 0.2 1.8 0.7 0.6 1.2 0.6 1.2 1.4 2.7 0.6 1.2 1.5 2.9 Turn 60 11 2.2 0.6 1.2 11 1.8 4.0 0.8 0.4 1.7 1.4 2.7 2.7 2.7 2.5 1.7 0.3 3.2 1.8 0.8 5.6 1.5 13 4.4 4.4 10 20 4.4 11 21 81 16 4.4 80 13 30 13 10 20 20 20 18 12 24 13 14 22 41