2000-2005 Yamaha F40B Outboard Service Manual, Page 242Get this manual
IPOWRI '-!J: EXHAUST COVER EXHAUST COVER
REMOVINGINSTALLING THE EXHAUST COVER
40 Nm(4.0 kgf, 29 ft Ib)
6 Nm(0.6 kgf, 4.3 ft Ib) Nm(0.6 kgf, 4.3 ft Ib) 12 Nm(1.2 kgf, 8.7 ft Ib)
18 Nm(1.8 kgf, 13 ft Ib)