Installation Requirements; Boat Horsepower Rating; Mounting Outboard Motor; Remote Control Requirements - Yamaha VF90 Owner's Manual

Min. research octane number (RON):
90
Recommended engine oil:
YAMALUBE 4M FC-W 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):
3.0 L (3.17 US qt, 2.64 Imp.qt)
Engine oil quantity (with oil filter
replacement):
3.2 L (3.38 US qt, 2.82 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 / SAE 80W API GL-5 /
SAE 90 API GL-5
Gear oil quantity:
0.760 L (0.803 US qt, 0.669 Imp.qt)
Tightening torque:
Spark plug:
25 N·m (2.55 kgf·m, 18.4 lb·ft)
Propeller nut:
54 N·m (5.51 kgf·m, 39.8 lb·ft)
Engine oil drain bolt:
27 N·m (2.75 kgf·m, 19.9 lb·ft)
Engine oil filter:
18 N·m (1.84 kgf·m, 13.3 lb·ft)
EMU33556

Installation requirements

EMU33565

Boat horsepower rating

EWM01561
WARNING
Overpowering a boat can cause severe in-
stability.
Specifications and requirements
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.
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 43.
EMU33582

Remote control requirements

EWM01581
 If the engine starts in gear, the boat can
move suddenly and unexpectedly, pos-
sibly causing a collision or throwing
passengers overboard.
 If the engine ever starts in gear, the
start-in-gear protection device is not
working correctly and you should dis-
continue using the outboard. Contact
your Yamaha dealer.
The remote control unit must be equipped
with a start-in-gear protection device(s). This
device prevents the engine from starting un-
less it is in neutral.
WARNING
WARNING
15