Yamaha E70 Owners Manual

							Specifications and requirements
15
0.8–0.9 mm (0.031–0.035 in)
Control system: 
Remote control
Starting system: 
Electric starter
Starting carburetion system: 
Electronic fuel injection
Valve clearance (cold engine) IN: 
0.15–0.25 mm (0.0059–0.0098 in)
Valve clearance (cold engine) EX: 
0.25–0.35 mm (0.0098–0.0138 in)
Min. cold cranking amps (CCA/SAE): 
380.0 A
Min. marine cranking amps (MCA/ABYC): 
502.0 A
Min. reserve capacity (RC/SAE): 
124 minutes
Maximum generator output: 
F50TR 16 A
F60TR 16 A
F70A 15 A
T50TR 16 A
T60TR 16 A
Drive unit:
Gear positions: 
Forward-neutral-reverse
Gear ratio: 
F50TR 1.85(24/13)
F60TR 1.85(24/13)
F70A 2.33(28/12)
T50TR 2.33(28/12)
T60TR 2.33(28/12)
Trim and tilt system: 
Power trim and tilt
Propeller mark: 
F50TR G
F60TR G
F70A K
T50TR K
T60TR KFuel and oil:
Recommended fuel: 
Regular unleaded gasoline
Min. pump octane: 
86
Fuel tank capacity: 
24 L (6.34 US gal, 5.28 Imp.gal)
Recommended engine oil: 
4-stroke outboard motor oil
Recommended engine oil group 1*: 
SAE 10W-30/10W-40/5W-30 
API SE/SF/SG/SH/SJ/SL
Recommended engine oil group 2*: 
SAE 15W-40/20W-40/20W-50 
API SH/SJ/SL
Total engine oil quantity (oil pan capacity): 
2.5 L (2.64 US qt, 2.20 Imp.qt)
Lubrication: 
Wet sump
Recommended gear oil: 
Hypoid gear oil SAE#90
Gear oil quantity: 
F50TR 0.430 L 
(0.455 US qt, 0.378 Imp.qt)
F60TR 0.430 L 
(0.455 US qt, 0.378 Imp.qt)
F70A 0.670 L 
(0.708 US qt, 0.590 Imp.qt)
T50TR 0.670 L 
(0.708 US qt, 0.590 Imp.qt)
T60TR 0.670 L 
(0.708 US qt, 0.590 Imp.qt)
Tightening torque for engine:
Spark plug: 
F50TR 18.0 Nm 
(1.84 kgf-m, 13.3 ft-lb)
F60TR 18.0 Nm 
(1.84 kgf-m, 13.3 ft-lb)
F70A 17.0 Nm 
(1.73 kgf-m, 12.5 ft-lb)
T50TR 18.0 Nm 
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							Specifications and requirements
16
(1.84 kgf-m, 13.3 ft-lb)
T60TR 18.0 Nm 
(1.84 kgf-m, 13.3 ft-lb)
Propeller nut: 
F50TR 35.0 Nm 
(3.57 kgf-m, 25.8 ft-lb)
F60TR 35.0 Nm 
(3.57 kgf-m, 25.8 ft-lb)
F70A 34.0 Nm 
(3.47 kgf-m, 25.1 ft-lb)
T50TR 35.0 Nm 
(3.57 kgf-m, 25.8 ft-lb)
T60TR 35.0 Nm 
(3.57 kgf-m, 25.8 ft-lb)
Engine oil drain bolt: 
F50TR 28.0 Nm 
(2.86 kgf-m, 20.7 ft-lb)
F60TR 28.0 Nm 
(2.86 kgf-m, 20.7 ft-lb)
F70A 27.0 Nm 
(2.75 kgf-m, 19.9 ft-lb)
T50TR 28.0 Nm 
(2.86 kgf-m, 20.7 ft-lb)
T60TR 28.0 Nm 
(2.86 kgf-m, 20.7 ft-lb)
Engine oil filter: 
18.0 Nm (1.84 kgf-m, 13.3 ft-lb)
EMU33581
Remote control requirements
WA R N I N G
EWM01580
●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 equippedwith a start-in-gear protection device(s). This
device prevents the engine from starting un-
less it is in neutral.
EMU25694
Battery requirements
EMU25713
Specifications of Battery
Use a fully charged battery that meets the
following specifications. The engine cannot
be started if battery voltage is too low.
NOTICE
ECM01061
Do not use a battery that does not meet
the specified capacity. If a battery that
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
EMU36290
Mounting battery
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in the
boat. WARNING! Do not put flammable
items, or loose heavy or metal objects in
the same compartment as the battery.
Fire, explosion or sparks could result.
[EWM01820] EMU36300
Multiple batteries
To connect multiple batteries, such as for
multiple engine configurations or for an ac-
cessory battery, consult your Yamaha dealerMinimum cold cranking amps 
(CCA/SAE):
380.0 A
Minimum marine cranking amps 
(MCA/ABYC):
502.0 A
Minimum reserve capacity (RC/SAE):
124 minutes
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							Specifications and requirements
17
about battery selection and correct wiring.EMU34194
Propeller selection
Next to selecting an outboard motor, select-
ing the right propeller is one of the most im-
portant purchasing decisions a boater can
make. The type, size, and design of your pro-
peller have a direct impact on acceleration,
top speed, fuel economy, and even engine
life. Yamaha designs and manufactures pro-
pellers for every Yamaha outboard motor
and every application.
Your outboard motor came with a Yamaha
propeller selected to perform well over a
range of applications, but there may be uses
where a different propeller would be more
appropriate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boat-
load. Generally, select a larger pitch propel-
ler for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, select the propeller
that lets the engine run in the proper range
for your maximum load but remember that
you may need to reduce your throttle setting
to stay within the recommended engine
speed range when carrying lighter loads.
To check the propeller, see page 85.
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-ap-
proved remote control units are equipped
with start-in-gear protection device(s). This
feature permits the engine to be started only
when it is in neutral. Always select neutral
before starting the engine.
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04606
- x
123
ZMU04605
- x
123
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							Specifications and requirements
18
EMU31445
Engine oil requirements
If the recommended engine oil grades are
not available, select an alternative from the
following chart according to the average tem-
peratures in your area.
EMU36360
Fuel requirements
EMU36781
Gasoline
Use a good quality gasoline that meets the
minimum octane rating. If knocking or ping-
ing occurs, use a different brand of gasoline
or premium unleaded fuel. Yamaha re-
comends that you use alcohol-free (see Gas-
ohol) gasoline whenever possible.
NOTICE
ECM01981
●Do not use leaded gasoline. Leaded
gasoline can seriously damage the en-
gine.
●Avoid getting water and contaminants
in the fuel tank. Contaminated fuel can
cause poor performance or engine
damage. Use only fresh gasoline that
has been stored in clean containers.
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol (E10) and that containing
methanol. Ethanol can be used if the ethanol
content does not exceed 10% and the fuel
meets the minimum octane ratings. E85 is a
fuel containing 85% ethanol and must not be
used in your outboard motor. All ethanol
blends containing more than 10% ethanol
can cause fuel system damage or cause en-
gine starting and running problems. Yamaha
does not recommend gasohol containing
methanol because it can cause fuel system
damage or engine performance problems.
It is recommended that you install a water-
separating marine fuel filter assembly (10 mi- Recommended engine oil:
YAMALUBE 4-M FC-W oil or 4-stroke 
motor oil with a combination of the fol-
lowing SAE and API oil classifications
Engine oil type SAE:
10W-30 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Total engine oil quantity (oil pan capaci-
ty): 
2.5 L (2.64 US qt, 2.20 Imp.qt)
Replacement engine oil quantity (at peri-
odic maintenance):
Without oil filter replacement: 
1.9 L (2.01 US qt, 1.67 Imp.qt)
With oil filter replacement: 
2.1 L (2.22 US qt, 1.85 Imp.qt)
Recommended gasoline:
Regular unleaded gasoline with a min-
imum Octane rating of 86 (Pump Oc-
tane Number) = (R+M)/2
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							Specifications and requirements
19
cron minimum) between your boat’s fuel tank
and outboard motor when using ethanol.
Ethanol is known to allow moisture to be ab-
sorbed into boat fuel tanks and systems.
Moisture in the fuel can cause corrosion of
metallic fuel system components, starting
and running complaints and require addition-
al fuel system maintenance.
EMU27270
Ring Free Fuel Additive
Gasoline is a precise blend of many different
substances, each chosen to give certain
characteristics. Gasoline blends have been
changing in recent years in response to con-
cerns about pollution and resulting emis-
sions regulations. One of the most obvious
changes has been the elimination of lead
from most fuels.
As gasoline has changed, the amount of ad-
ditives such as aromatics and oxygenates
has increased. These additives are impor-
tant for the engines in passenger cars, but
they can have detrimental effects in marine
engines, because of increased deposits in
the combustion chamber. When enough de-
posits collect, piston rings begin sticking.
Performance drops and engine wear in-
creases dramatically.
While many additives available may reduce
deposits, Yamaha recommends the use of
Ring Free Fuel Additive, available from
your Yamaha dealer. Ring Free Fuel Addi-
tive has repeatedly proven its ability to clean
combustion deposits from inside the engine,
notably the critical piston-ring-land area, and
fuel system components. Follow product la-
beling for use instructions.
EMU36330
Anti-fouling paint
A clean hull improves boat performance. The
boat bottom should be kept as clean of ma-rine growth as possible. If necessary, the
boat bottom can be coated with an anti-foul-
ing paint approved for your area to inhibit
marine growth.
Do not use anti-fouling paint which includes
copper or graphite. These paints can cause
more rapid engine corrosion.
EMU36341
Motor disposal requirements
Never illegally discard (dump) the motor.
Yamaha recommends consulting the dealer
about discarding the motor.
EMU36352
Emergency equipment
Keep the following items onboard in case
there is trouble with the outboard motor.
●A tool kit with assorted screwdrivers, pli-
ers, wrenches (including metric sizes), and
electrical tape.
●Waterproof flashlight with extra batteries.
●An extra engine shut-off cord (lanyard)
with clip.
●Spare parts, such as an extra set of spark
plugs.
Consult your Yamaha dealer for details.
EMU25221
Emission control information
EMU25230
North American models
This engine conforms to U.S. Environmental
Protection Agency (EPA) regulations for ma-
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							Specifications and requirements
20
rine SI engines. See the label affixed to your
engine for details.
EMU31560
Approval label of emission control certif-
icate
This label is attached to the bottom cowling.
New Technology; (4-stroke) MFI
EMU25262
Manufactured date label
This label is attached to the clamp bracket or
the swivel bracket.
EMU25273
Star labels
Your outboard motor is labeled with a Cali-
fornia Air Resources Board (CARB) star la-
bel. See below for a description of your
particular label.
1. Approval label location
1
ZMU05797
ZMU06894
EMISSION CONTROL INFORMATION MFITHIS ENGINE CONFORMS TO          CALIFORNIA AND U.S. EPA EXHAUST
REGULATIONS FOR SI MARINE ENGINES. REFER TO THE OWNERS
MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
MEETS U.S. EPA EVAP STANDARDS USING CERTIFIED COMPONENTS.
FAMILY:DISPLACEMENT:            litersSPARK PLUG:
FUEL: GASOLINE
FELs(HC+NOx / CO):        /        g/kW-hr  MAX POWER:              kWIDLE SPEED:          ±         rpm IN NETRAL
SPARK PLUG GAP (mm):
VALVE LASH (mm) IN:                  EX:
YAMAHA MOTOR CO.,LTD.
1. Manufactured date label location
1. Star labels location
ZMU047011
ZMU05088
1
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							Specifications and requirements
21
EMU25280
One Star—Low Emission
The one-star label identifies engines that
meet the Air Resources Board’s 2001 ex-
haust emission standards. Engines meeting
these standards have 75% lower emissions
than conventional carbureted two-stroke en-
gines. These engines are equivalent to the
U.S. EPA’s 2006 standards for marine en-
gines.
EMU40340
Two Stars—Very Low Emission
The two-star label identifies engines that
meet the Air Resources Board’s Personal
Watercraft and Outboard marine engine
2004 exhaust emission standards. Engines
meeting these standards have 20% lower
emissions than One Star-Low-Emission en-
gines.
EMU40350
Three Stars—Ultra Low Emission
The three-star label identifies engines thatmeet the Air Resources Board’s Personal
Watercraft and Outboard marine engine
2008 exhaust emission standards or the
Sterndrive and Inboard marine engine 2003-
2008 exhaust emission standards. Engines
meeting these standards have 65% lower
emissions than One Star-Low-Emission en-
gines.
EMU33861
Four Stars—Super Ultra Low Emission
The four-star label identifies engines that
meet the Air Resources Board’s Sterndrive
and Inboard marine engine 2009 exhaust
emission standards. Personal Watercraft
and Outboard marine engines may also
comply with these standards. Engines meet-
ing these standards have 90% lower emis-
sions than One Star-Low-Emission engines.ZMU01702
ZMU01703
ZMU01704
ZMU05663
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							22
Components
EMU2579T
Components diagram
TIP:
* May not be exactly as shown; also may not be included as standard equipment on all mod-
els (order from dealer).
F50, F60, T50, T60
2
3
4
TRIP TIME BATT
Km/h
knot
mph
km
mileSPEEDYAMAHA
set
mode
14
1
9
11
6
7
5 10
8
1215 13
1816 17
19 20
ZMU05090
1. Top cowling
2. Water separator
3. Cowling lock lever
4. Drain screw
5. Anode*
6. Anti-cavitation plate
7. Trim tab (anode)
8. Propeller*
9. Cooling water inlet
10. Anode(s)
11. Clamp bracket
12. Tilt support lever
13. Tiller handle*
14. Flushing device
15. Remote control box (side mount type)*16. Digital tachometer*
17. Digital speedometer*
18. Tachometer*
19. Trim meter*
20. Fuel tank*
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							Components
23
F70A
1
3
2
4
10
95
6
7
8
10TRIP TIME BATTKm/h
knot
mph
km
mileSPEEDYAMAHA
set
mode
131415
1617
18 12
11
ZMU07113
1. Top cowling
2. Water separator
3. Cowling lock lever
4. Drain screw
5. Anti-cavitation plate
6. Trim tab (anode)
7. Propeller*
8. Cooling water inlet
9. Anode(s)
10. Tilt support lever
11. Power trim and tilt switch
12. Flushing device
13. Remote control box (side mount type)*
14. Digital tachometer*
15. Digital speedometer*
16. Tachometer*
17. Trim meter*
18. Fuel tank*
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							Components
24
F70HA
1
3
2
17 18 19 20
4
1012
1613
9 10
5
6
7
8
1514
11
ZMU07120
21
1. Top cowling
2. Water separator
3. Cowling lock lever
4. Drain screw
5. Anti-cavitation plate
6. Trim tab (anode)
7. Propeller*
8. Cooling water inlet
9. Anode(s)
10. Tilt support lever
11. Power trim and tilt switch
12. Gear shift lever
13. Variable trolling RPM switch
14. Power trim and tilt switch
15. Throttle grip
16. Engine stop button/Engine shut-off switch
17. Clip
18. Main switch
19. Steering friction adjuster
20. Flushing device21. Fuel tank*
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