2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 91Get this manual
Power unit
15 (1.5 kgf m, 11.1 ft lb) 30 (3.0 kgf m, 22.1 ft lb) 90
No18 19 20 21 22 23 24
25 (2.5 kgf m, 18.4 ft Ib)
16 24 24 23 22 21 20 19 18 17
Q'ty 16 32 16 16 16 16 16