1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 57Get this manual
[SPEcl U-I
TIGHTENING TORQUES
Thread size M8 M8 78 UNF M10 M6 M6 M6 M8 Tightening torque Nm 8.0 8.0 23.0 37.0 10.3 27.0 9.3 9.3 21.0 3.0 18.0 .0 9.0 7.0 90.0 4.0 7.0 61.0 3.0 6.0 5.7 29.5 7.0 7.0 4.5 4.5 kg 0.8 0.8 2.3 3.7 0.95 2.7 0.95 0.95 2.1 0.3 1.8 0.7 0.9 0.7 9.2 0.4 0.7 6.1 0.3 0.6 0.6 3.0 0.7 0.7 0.5 0.5
Part to be tightened Clamp bracketlower (manual tilt) Tilt stop lever Clamp bracketupper (PTT) Clamp bracketlower (PTT) Oil pan Engine oil drain bolt Muffler Exhaust manifold Exhaust guide Grease nipple PTT mount PTT UNIT Plug screw Tilt cylinder Motor unit Cylinder end screw Gear pump Main valve Tilt piston Manual control screw Up-relief valve ELECTRICAL Oil pressure switch Starter motor mounting COl unit Ignition coil Engine stop switch Sta rte switch