2000-2005 Yamaha F40B Outboard Service Manual, Page 226Get this manual
CYLINDER HEAD
6 x45 mm 18 Nm (1.8 m' kgf, 13.3 ft -Ib) 8x 30 mm
Order 14 Valve spring 15 16 17 18
CYLINDER HEAD
6 x45 mm 18 Nm (1.8 m' kgf, 13.3 ft -Ib) 8x 30 mm
Order 14 Valve spring 15 16 17 18