2000-2005 Yamaha F40B Outboard Service Manual, Page 66Get this manual
TIGHTENING TORQUES
TIGHTENING TORQUES
SPECIFIED TORQUES
Part to be tightened Part name Bolt Nut Bolt Thread size M8 M20 M6 a'ty Tightening torques Nm 21 157 17.5 40 17.2 38 22.6 46.1 11.8 18 13.5 12 12 15 30 8.4 m.kgf 2.1 16.0 0.8 1.8 4.0 1.7 3.8 2.3 4.6 0.6 1.2 1.8 1.4 0.6 1.2 0.6 1.2 1.5 3.0 0.8 40 3.9 3.9 1.6 7.4 0.5 3.7 3.6 0.4 3.7 2.4 ft.lb 15 116 5.9 13 30 13 28 17 34 4.4 8.7 13 10 4.4 8.9 4.4 8.9 11 22 6.2 Remarks
POWER UNIT Power unit mounting Flywheel Carburetor unit assembly Oil filter Oil filter plug Spark plug Driven sprocket 1st 2nd Cylinder head 1st 2nd Rocker arm shaft Tappet adjusting screw locknut 1st Exhaust cover 2nd 1st 2nd Crankcase 1st 2nd 1st Connecting rod 2nd LOWER Propeller Lower unit mounting Propeller shaft housing Pinion nut Water inlet BRACKET Tiller handle mounting Steering bracket Steering friction mounting Tiller handle pivot Rubber mount, upper