Yamaha E70 Owners Manual

							Safety information
5
way; it is called the “stand-on” vessel. The
vessel that does not have the right-of-way is
called the “give-way” or “burdened”vessel.
These rules determine which vessel has the
right-of-way, and what each vessel should
do. 
Stand-on vessel
The vessel with the right-of-way has the duty
to continue its course and speed, except to
avoid an immediate collision. When you
maintain your direction and speed, the other
vessel will be able to determine how best to
avoid you. 
Give-way vessel
The vessel that does not have the right-of-
way has the duty to take positive and timely
action to stay out of the way of the Stand-On
vessel. Normally, you should not cross in
front of the vessel with the right-of-way. You
should slow down or change directions brief-
ly and pass behind the other vessel. You
should always move in such a way that the
operator of the other vessel can see what
you are doing.
“ The general prudential rule ”
This rule is called Rule 2 in the International
Rules and says,
“ In obeying and construing these rules due
regard shall be had to all dangers of naviga-
tion and collision, and to any special circum-
stances, which may render a departure from
the above rules necessary in order to avoid
immediate danger.”
In other words, follow the standard rules ex-
cept when a collision will occur unless both
vessels try to avoid each other. If that is the
case, both vessels become “ Give-Way ”
vessels.EMU25521
Rules when encountering vessels
There are three main situations that you may
encounter with other vessels which could
lead to a collision unless the Steering Rules
are followed:
Meeting: (you are approaching another ves-
sel head-on)
Crossing: (you are traveling across the oth-
er vessel’s path)
Overtaking: (you are passing or being
passed by another vessel)
In the following illustration, your boat is in the
center. You should give the right-of-way to
any vessels shown in white area (you are the
Give-Way vessel). Any vessels in the shad-
ed area must yield to you (they are the Give-
Way vessels). Both you and the meeting
vessel must alter course to avoid each other.
Meeting
If you are meeting another power vessel
head on, and are close enough to run the risk
of collision, neither of you has the right-of-
way Both of you should alter course to avoid
an accident. You should keep the other ves-
sel on your port (left) side. This rule doesn’t
apply if both of you will clear one another if
you continue on your set course and speed.
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							Safety information
6
Crossing
When two power driven vessels are crossing
each other’s path close enough to run the
risk of collision, the vessel which has the oth-
er on the starboard (right) side must keep out
of the way of the other. If the other vessel is
on your right, you must keep out of its way;
you are the Give-Way vessel. If the other
vessel is on your port (left) side, remember
that you should maintain course and direc-
tion, provided the other vessel gives you the
right-of-way as it should.
Overtaking
If you are passing another vessel, you are
the “Give-Way” vessel. This means that the
other vessel is expected to maintain its
course and speed. You must stay out of its
way until you are clear of it. Likewise, if an-
other vessel is passing you, you should
maintain your speed and direction so that the
other vessel can steer itself around you.
EMU25531
Other special situations
There are three other rules you should be
aware of when driving your boat around oth-
er vessels.
Narrow channels and bends
When navigating in narrow channels, you
should keep to the right when it is safe and
practical to do so. If the operator of a power-
driven vessel is preparing to go around a
bend that may obstruct the view of other wa-
ter vessels, the operator should sound a pro-
longed blast on the whistle (4 to 6 seconds).
If another vessel is around the bend, it too
should sound the whistle. Even if no reply is
heard, however, the vessel should still pro-
ceed around the bend with caution. If you
navigate such waters with your boat, you will
need to carry a portable air horn, available
from local marine supply stores.
Fishing vessel right-of-way
All vessels that are fishing with nets, lines or
trawls are considered to be “fishing vessels”
under the International Rules. Vessels with
trolling lines are not considered fishing ves-
sels. Fishing vessels have the right-of-way
regardless of position. Fishing vessels can-
not, however, impede the passage of other
vessels in narrow channels.
Sailing vessel right-of-way
Sailing vessels should normally be given the
right-of-way. The exceptions to this are:
1. When the sailing vessel is overtaking the
power-driven vessel, the power-driven
vessel has the right-of-way.
2. Sailing vessels should keep clear of any
fishing vessel.
3. In a narrow channel, a sailing vessel
should not hamper the safe passage of
a power-driven vessel that can navigate
only in such a channel.
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							Safety information
7
Reading buoys and other markers
The waters of the United States are marked
for safe navigation by the lateral system of
buoyage. Simply put, buoys and markers
have an arrangement of shapes, colors,
numbers and lights to show which side of the
buoy a boater should pass on when navigat-
ing in a particular direction. The markings on
these buoys are oriented from the perspec-
tive of being entered from seaward (the boat-
er is going towards the port). This means that
red buoys are passed on the starboard
(right) side when proceeding from open wa-
ter into port, and black buoys are to port (left)
side. When navigating out of port, your posi-
tion with respect to the buoys should be re-
versed; red buoys should be to port and
black buoys to starboard.
Many bodies of water used by boaters are
entirely within the boundaries of a particular
state. The Uniform State Waterway Marking
System has been devised for these waters.
This system uses buoys and signs with dis-
tinctive shapes and colors to show regulatory
or advisory information. These markers are
white with black letters and orange boarders.
They signify speed zones, restricted areas,
danger areas, and general information.
Remember, markings may vary by geo-
graphic location. Always consult local boat-
ing authorities before driving your boat in
unfamiliar waters.
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							Safety information
8
ZMU01708
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							9
General information
EMU25171
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is
stamped on the label attached to the port
side of the clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is sto-
len.
EMU25190
Key number
If a main key switch is equipped with the mo-
tor, the key identification number is stamped
on your key as shown in the illustration.
Record this number in the space provided for
reference in case you need a new key.
1. Outboard motor serial number location
1. Key number
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							General information
10
EMU33522
Read manuals and labels
Before operating or working on this outboard motor:
●Read this manual.
●Read any manuals supplied with the boat.
●Read all labels on the outboard motor and the boat.
If you need any additional information, contact your Yamaha dealer.
EMU33832
Warning labels 
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
F50, F60, T50, T60
12
3
ZMU05676
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							General information
11
F70
3
12
ZMU07102
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							General information
12
12
3
ZMU05670
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							General information
13
EMU33843
Symbols
The following symbols mean as follows.
Notice/Warning
Read Owner’s Manual
Hazard caused by continuous rotationElectrical hazard
Remote control lever/gear shift lever operat-
ing direction, dual direction
Engine start/ Engine cranking
ZMU05696
ZMU05664
ZMU05665
ZMU05666
ZMU05667
ZMU05668
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							14
Specifications and requirements
EMU34520
Specifications
TIP:
“(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.
TIP:
“*” means, select the engine oil referring to
the chart of engine oil paragraph. For further
information, see page 18.
EMU2821J
Dimension:
Overall length: 
F50TR 706 mm (27.8 in)
F60TR 706 mm (27.8 in)
F70A 713 mm (28.1 in)
T50TR 706 mm (27.8 in)
T60TR 706 mm (27.8 in)
Overall width: 
F50TR 385 mm (15.2 in)
F60TR 385 mm (15.2 in)
F70A 386 mm (15.2 in)
T50TR 385 mm (15.2 in)
T60TR 385 mm (15.2 in)
Overall height L: 
F50TR 1414 mm (55.7 in)
F60TR 1414 mm (55.7 in)
F70A 1476 mm (58.1 in)
T50TR 1455 mm (57.3 in)
T60TR 1455 mm (57.3 in)
Transom height L: 
F50TR 527 mm (20.7 in)
F60TR 527 mm (20.7 in)
F70A 534 mm (21.0 in)
T50TR 530 mm (20.9 in)
T60TR 530 mm (20.9 in)
Weight (AL) L: F50TR 113.0 kg (249 lb)
F60TR 113.0 kg (249 lb)
F70A 119.0 kg (262 lb)
T50TR 118.0 kg (260 lb)
T60TR 123.0 kg (271 lb)
Performance:
Full throttle operating range: 
F50TR 5000–6000 r/min
F60TR 5000–6000 r/min
F70A 5300–6300 r/min
T50TR 5000–6000 r/min
T60TR 5000–6000 r/min
Maximum output: 
F50TR 36.8 kW@5500 r/min 
(50 HP@5500 r/min)
F60TR 44.1 kW@5500 r/min 
(60 HP@5500 r/min)
F70A 51.5 kW@5800 r/min 
(70 HP@5800 r/min)
T50TR 36.8 kW@5500 r/min 
(50 HP@5500 r/min)
T60TR 44.1 kW@5500 r/min 
(60 HP@5500 r/min)
Idle speed (in neutral): 
750 50 r/min
Engine:
Type: 
4-stroke L
Displacement: 
996.0 cm
3
Bore  stroke: 
65.0  75.0 mm (2.56  2.95 in)
Ignition system: 
TCI
Spark plug (NGK): 
F50TR DPR6EB-9
F60TR DPR6EB-9
F70A LKR7E
T50TR DPR6EB-9
T60TR DPR6EB-9
Spark plug gap: 
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