Yamaha F 40 User Guide

 
Operation 
45 
from marine growth and corrosion which
could damage the power trim and tilt 
mechanism. 
EMU28041 
Procedure for tilting down (manual 
and hydro tilt models) 
1. Release the tilt lock lever.
2. Hold the rear of the top cowling with one
hand, tilt the outboard motor up slightly
and pull out the tilt support knob or re-
turn the tilt support lever.
3. Slowly tilt the outboard motor down.
4. Place the tilt lock lever in the lock posi-
tion. 
EMU28055 
Procedure for tilting down (power 
trim...

 
Operation 
46 
EMU28060 
Cruising in shallow water 
The outboard motor can be tilted up partially
to allow operation in shallow water. 
EMU28080 
Hydro tilt models 
The outboard motor can be tilted up partially
to allow operation in shallow water.
WARNING
 
EWM00270  
 
Place the gear shift in neutral before us-ing the shallow water cruising system. 
 
Run the boat at the lowest possible
speed when using the shallow water
cruising system. 
 
Use extra care when operating in re-
verse. Too much...

 
Operation 
47 
2. Pull the tilt lock lever up to the release
position.
3. Slightly tilt the outboard motor up to the
desired position and push the tilt lock le-
ver down to the lock position.
4. To return the outboard motor to the nor-
mal running position, pull the tilt lock le-
ver up to the release position and slowly
tilt the outboard motor down.
5. Push the tilt lock lever down to the lock
position. 
EMU28090 
Power trim and tilt models / power tilt 
models 
The outboard motor can be tilted up...

 
Operation 
48 
2. Slightly tilt the outboard motor up to the
desired position using the power trim
and tilt switch / power tilt switch.3. To return the outboard motor to the nor-
mal running position, press the power
trim and tilt switch / power tilt switch and
slowly tilt the outboard motor down. 
EMU28192 
Cruising in other conditions 
Cruising in salt water 
After operating in salt water, flush the cooling
water passages with fresh water to prevent
them from becoming clogged with salt de-
posits....

 
49 
Maintenance 
EMU31480 
Specifications
NOTE:
 
“(AL)” stated in the specification data below
represents the numerical value for the alumi-
num propeller installed.
Likewise, “(SUS)” represents the value for
stainless steel propeller installed and “(PL)” 
for plastic propeller installed. 
EMU28218 
Dimension: 
Overall length: 
F40MH 1332 mm (52.4 in)
F40TR 700 mm (27.6 in)
Overall width: 
378 mm (14.9 in)
Overall height S: 
1217 mm (47.9 in)
Overall height L: 
1340 mm (52.8 in)
Transom height S: 
410...

 
Maintenance 
50 
Recommended fuel: 
Regular unleaded gasoline
Min. pump octane: 
86
Fuel tank capacity: 
25 L (6.60 US gal) (5.50 Imp.gal)
Recommended engine oil: 
4-stroke outboard motor oil
Engine oil grade API: 
API SE, SF, SG, SH, SJ, SL
Engine oil type SAE: 
SAE10W30 or SAE10W40
Lubrication: 
Wet sump
Engine oil quantity (excluding oil filter): 
2.0 L (2.11 US qt) (1.76 Imp.qt)
Recommended gear oil: 
Hypoid gear oil SAE#90
Gear oil quantity: 
430.0 cm 
3
 
 (14.54 US oz) (15.17 
Imp.oz)...

 
Maintenance 
51 
lowing procedures.
CAUTION:
 
ECM01080  
 
To prevent problems which can be
caused by oil entering the cylinder from
the sump, keep the outboard motor in
the attitude shown when transporting
and storing it. If storing or transporting
the outboard motor on its side (not up-
right), put it on a cushion after draining
the engine oil. 
 
Do not place the outboard motor on its
side before the cooling water has
drained from it completely, otherwise
water may enter the cylinder through
the...

 
Maintenance 
52 
gine will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water passag- 
es.
CAUTION:
 
ECM00290  
If the fresh water level is below the level
of the anti-cavitation plate, or if the water
supply is insufficient, engine seizure may 
occur. 
6. Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging of the engine is mandatory
to prevent excessive engine damage...

 
Maintenance 
53 
dling or working near batteries.
Antidote (EXTERNAL): 
 
SKIN - Flush with water. 
 
EYES - Flush with water for 15 minutes
and get immediate medical attention.
Antidote (INTERNAL): 
 
Drink large quantities of water or milk
followed by milk of magnesia, beaten
egg, or vegetable oil. Get immediate
medical attention.
Batteries also generate explosive hydro-
gen gas; therefore, you should always
follow these preventive measures: 
 
Charge batteries in a well-ventilated ar-
ea. 
...

 
Maintenance 
54 
and let the water flush through the cool-
ing passages for about 15 minutes. Turn
off the water and disconnect the garden
hose adapter from the garden hose con-
nector.
4. Reinstall the garden hose connector
onto the fitting on the bottom cowling.
Tighten the connector securely.
CAUTION:
 
ECM00540  
Do not leave the garden hose connector
loose on the bottom cowling fitting or let
the hose hang free during normal opera-
tion. Water will leak out of the connector
instead of cooling the...