Installation Requirements; Boat Horsepower Rating; Mounting Outboard Motor; Yamaha Security System (If Equipped) - Yamaha LF115 Owner's Manual

Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. pump octane number (PON):
87
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:
F115B 0.760 L (0.803 US qt,
0.669 Imp.qt)
F115BET1 0.760 L (0.803 US qt,
0.669 Imp.qt)
FL115BET1 0.715 L (0.756 US qt,
0.629 Imp.qt)
LF115B 0.715 L (0.756 US qt,
0.629 Imp.qt)
Tightening torque:
Spark plug:
25 Nm (2.55 kgf-m, 18.4 ft-lb)
Propeller nut:
54 Nm (5.51 kgf-m, 39.8 ft-lb)
Specifications and requirements
EMU33555
EMU33565

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 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-
 Because the outboard motor is very
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 54.
EMU38582

Yamaha Security System (if equipped)

ECM02461
NOTICE
The Yamaha Security System is sold in
conformity with the relevant laws and reg-
ulations regarding radio wave transmis-
sion. Therefore, if this product is used
outside the country where it was sold, it
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)

Installation requirements

WARNING
WARNING
tor could result in hazardous conditions
such as poor handling, loss of control,
or fire hazards.
heavy, special equipment and training is
required to mount it safely.
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