Installation Requirements; Boat Horsepower Rating; Mounting Outboard Motor; Digital Electronic Control Requirements - Yamaha F400A Owner's Manual

Specifications and requirements
Propeller mark:
Y (F400ASTU, F400ASTX, F450AVTU,
F450AVTX)
YL (FL400ASTU, FL400ASTX,
FL450AVTU, FL450AVTX)
Fuel and oil:
Recommended fuel:
Premium unleaded gasoline
Min. pump octane number (PON):
89
Min. research octane number (RON):
94
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard
motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SG/SH/SJ/SL
Engine oil quantity (without oil filter
replacement):
7.5 L (7.93 US qt, 6.60 Imp.qt)
Engine oil quantity (with oil filter
replacement):
7.8 L (8.24 US qt, 6.86 Imp.qt)
Lubrication system:
Wet sump
Recommended gear oil:
YAMALUBE outboard gear oil or Hypoid
gear oil
Recommended gear oil grade:
SAE 80W API GL-5 / SAE 90 API GL-5
Gear oil quantity:
1.830 L (1.934 US qt, 1.610 Imp.qt)
(FL400ASTU, FL400ASTX, FL450AVTU,
FL450AVTX)
1.950 L (2.061 US qt, 1.716 Imp.qt)
(F400ASTU, F400ASTX, F450AVTU,
F450AVTX)
12
Noise and vibration level:
Operator sound pressure level (ICOMIA
39/94):
83.1 dB(A)
EMU33556

Installation requirements

EMU33566

Boat horsepower rating

EWM01561
Overpowering a boat can cause severe in-
stability.
Before installing the outboard motor(s), con-
firm that the total horsepower of your out-
board motor(s) does not exceed the boat's
maximum horsepower rating. See the boat's
capacity plate or contact the manufacturer.
EMU40491

Mounting outboard motor

EWM02501
 Improper mounting of the outboard mo-
tor could result in hazardous conditions
such as poor handling, loss of control,
or fire hazards.
 Because the outboard motor is very
heavy, special equipment and training is
required to mount it safely.
Your dealer or other person experienced in
proper rigging should mount the outboard
motor using correct equipment and complete
rigging instructions. For further information,
see page 38.
EMU34954
Digital electronic control re-
quirements
The digital electronic control is equipped with
a start-in-gear protection device(s). This de-
vice prevents the engine from starting unless
it is in neutral.