Installation Requirements; Boat Horsepower Rating - Yamaha F15C Owner's Manual

Specifications and requirements
Lower unit:
Gear shift positions:
Forward-neutral-reverse
Gear ratio:
2.08 (27/13)
Trim and tilt system:
F15CE Manual tilt
F15CEH Manual tilt
F15CEP Power tilt
F15CMH Manual tilt
F20BE Manual tilt
F20BEH Manual tilt
F20BEP Power tilt
F20BMH Manual tilt
F9.9HE Manual tilt
F9.9HMH Manual tilt
Propeller mark:
F9.9H J/J1
F15C J/J1
F20B J1
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. research octane number (RON):
90
Fuel tank capacity:
25 L (6.60 US gal, 5.50 Imp.gal)
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard
motor oil
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):
1.6 L (1.69 US qt, 1.41 Imp.qt)
Engine oil quantity (with oil filter replace-
ment):
1.8 L (1.90 US qt, 1.58 Imp.qt)
Lubrication system:
Wet sump
11
Recommended gear oil:
YAMALUBE outboard gear oil or Hy-
poid gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
0.250 L (0.264 US qt, 0.220 Imp.qt)
Tightening torque:
Spark plug:
17 Nm (1.73 kgf-m, 12.5 ft-lb)
Propeller nut:
17 Nm (1.73 kgf-m, 12.5 ft-lb)
Engine oil drain bolt:
27 Nm (2.75 kgf-m, 19.9 ft-lb)
Engine oil filter:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
Noise and vibration level:
Operator sound pressure level (ICOMIA
39/94):
80.3 dB(A)
Vibration on tiller handle (ICOMIA 38/94):
F15CEH 2.7 m/s
F15CMH 2.7 m/s
F20BEH 2.7 m/s
F20BMH 2.7 m/s
F9.9HMH 2.7 m/s
EMU33555

Installation requirements

EMU33565

Boat horsepower rating

EWM01561
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.
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