Installation Requirements; Boat Horsepower Rating; Mounting Motor - Yamaha F50 Owner's Manual

Specifications and requirements
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Engine oil quantity (without oil filter re-
placement):
1.9 L (2.01 US qt, 1.67 Imp.qt)
Engine oil quantity (with oil filter replace-
ment):
2.1 L (2.22 US qt, 1.85 Imp.qt)
Lubrication system:
Wet sump
Recommended gear oil:
Yamalube Marine Gearcase Lube or
Hypoid gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
F50B 0.430 L (0.455 US qt,
0.378 Imp.qt)
F50HB 0.430 L (0.455 US qt,
0.378 Imp.qt)
F60B 0.430 L (0.455 US qt,
0.378 Imp.qt)
F60HB 0.430 L (0.455 US qt,
0.378 Imp.qt)
F70A 0.670 L (0.708 US qt,
0.590 Imp.qt)
F70HA 0.670 L (0.708 US qt,
0.590 Imp.qt)
T50B 0.670 L (0.708 US qt,
0.590 Imp.qt)
T60B 0.670 L (0.708 US qt,
0.590 Imp.qt)
Tightening torque:
Spark plug:
F50B 18 Nm (1.84 kgf-m, 13.3 ft-lb)
F50HB 18 Nm (1.84 kgf-m, 13.3 ft-lb)
F60B 18 Nm (1.84 kgf-m, 13.3 ft-lb)
F60HB 18 Nm (1.84 kgf-m, 13.3 ft-lb)
F70A 17 Nm (1.73 kgf-m, 12.5 ft-lb)
F70HA 17 Nm (1.73 kgf-m, 12.5 ft-lb)
16
T50B 18 Nm (1.84 kgf-m, 13.3 ft-lb)
T60B 18 Nm (1.84 kgf-m, 13.3 ft-lb)
Propeller nut:
F50B 35 Nm (3.57 kgf-m, 25.8 ft-lb)
F50HB 35 Nm (3.57 kgf-m, 25.8 ft-lb)
F60B 35 Nm (3.57 kgf-m, 25.8 ft-lb)
F60HB 35 Nm (3.57 kgf-m, 25.8 ft-lb)
F70A 34 Nm (3.47 kgf-m, 25.1 ft-lb)
F70HA 34 Nm (3.47 kgf-m, 25.1 ft-lb)
T50B 35 Nm (3.57 kgf-m, 25.8 ft-lb)
T60B 35 Nm (3.57 kgf-m, 25.8 ft-lb)
Engine oil drain bolt:
F50B 28 Nm (2.86 kgf-m, 20.7 ft-lb)
F50HB 28 Nm (2.86 kgf-m, 20.7 ft-lb)
F60B 28 Nm (2.86 kgf-m, 20.7 ft-lb)
F60HB 28 Nm (2.86 kgf-m, 20.7 ft-lb)
F70A 27 Nm (2.75 kgf-m, 19.9 ft-lb)
F70HA 27 Nm (2.75 kgf-m, 19.9 ft-lb)
T50B 28 Nm (2.86 kgf-m, 20.7 ft-lb)
T60B 28 Nm (2.86 kgf-m, 20.7 ft-lb)
Engine oil filter:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
EMU33554

Installation requirements

EMU33564

Boat horsepower rating

EWM01560
WARNING
Overpowering a boat can cause severe
instability.
Before installing the outboard motor(s), con-
firm that the total horsepower of your out-
board motor(s) does not exceed the boats
maximum horsepower rating. See the boat's
capacity plate or contact the manufacturer.
EMU33571

Mounting motor

EWM01570
WARNING
Improper mounting of the outboard mo-

tor could result in hazardous condi-