Installation Requirements; Boat Horsepower Rating - Yamaha F8F Owner's Manual

Specifications and requirements
Valve clearance IN (cold engine):
0.15–0.20 mm (0.0059–0.0079 in)
Valve clearance EX (cold engine):
0.20–0.25 mm (0.0079–0.0098 in)
Battery rating (CCA/EN):
347–411 A (F8FE, FT8GE, FT8GEP)
Battery rating (20HR/IEC):
40 Ah (F8FE, FT8GE, FT8GEP)
Maximum generator output:
6 A (F8FE, FT8GE, FT8GEP)
Lower unit:
Gear shift positions:
Forward-neutral-reverse
Gear ratio:
2.08 (27/13) (F6DM, F6DMH, F8FE,
F8FMH)
2.92 (38/13) (FT8GE, FT8GEP,
FT8GMH)
Trim and tilt system:
Manual tilt (F6DM, F6DMH, F8FE,
F8FMH, FT8GE, FT8GMH)
Power tilt (FT8GEP)
Propeller mark:
N (F6DM, F6DMH, F8FE, F8FMH)
R (FT8GE, FT8GEP, FT8GMH)
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. research octane number (RON):
90
Fuel tank capacity:
12 L (3.17 US gal, 2.64 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
12
Engine oil quantity:
0.8 L (0.85 US qt, 0.70 Imp.qt)
Lubrication system:
Wet sump
Recommended gear oil:
YAMALUBE outboard gear oil or Hypoid
gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
0.150 L (0.159 US qt, 0.132 Imp.qt)
(F6DM, F6DMH, F8FE, F8FMH)
0.370 L (0.391 US qt, 0.326 Imp.qt)
(FT8GE, FT8GEP, FT8GMH)
Noise and vibration level:
Operator sound pressure level (ICOMIA
39/94):
78.2 dB(A)
Vibration on tiller handle (ICOMIA 38/94):
7.2 m/s² (F6DMH, F8FMH, FT8GMH)
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.