Yamaha 2A User manual

2A/3A/5A
LIT-18626-04-51
2A
3A
5A
OWNER’S MANUAL
U.S.A.Edition
6A1-9-1L \ 01.4.203:02PM y[W1(2,1)

6A1-9-1L \ 01.4.203:02PM y[W2(1,1)

Thank you for choosing a Yamaha out-
board motor. This Owner’s manual con-
tains information needed for proper oper-
ation, maintenance and care. A thorough
understanding of these simple instruc-
tions will help you obtain maximum
enjoyment from your new Yamaha. If you
have any question about the operation or
maintenance of your outboard motor,
please consult a Yamaha dealer.
In this Owner’s Manual particularly
important information is distinguished in
the following ways.
QThe Safety Alert Symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
w
Failure to follow WARNING instructions
could result in severe injury or death to
the machine operator, a bystander, or a
person inspecting or repairing the out-
board motor.
cC
A CAUTION indicates special precautions
that must be taken to avoid damage to
the outboard motor.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
* Yamaha continually seeks advance-
ments in product design and quality.
Therefore, while this manual contains
the most current product information
available at the time of printing, there
may be minor discrepancies between
your machine and this manual. If there
is any question concerning this manual,
please consult your Yamaha dealer.
NOTE:
The 2MH, 3MH, 5MH and their standard
accessories are used as a base for the
explanations and illustrations in this man-
ual. Therefore, some items may not apply
to every model.
EMU01449
TO THE OWNER
E
EMU01446
2A/3A/5A
OWNER'S MANUAL
©2001 by Yamaha Motor Corporation, USA
1st Edition, March 2001
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in Japan
P/N LIT-18626-04-51
6A1-9-1L 1 4/20/01 12:01 PM Page 1

6A1-9-1L 1 4/20/01 12:01 PM Page 2

1
2
3
4
5
6
E
TROUBLE RECOVERY
MAINTENANCE
OPERATION
BASIC COMPONENTS
GENERAL INFORMATION
CONTENTS
INDEX
READ THIS OWNER’S MANUAL CAREFULLY
BEFORE OPERATING YOUR OUTBOARD MOTOR.
EMA20010
6A1-9-1L 1 4/20/01 12:01 PM Page 3

6A1-9-1L 1 4/20/01 12:01 PM Page 4

1
2
3
4
5
6
E
EMB00010
Chapter 1
GENERAL
INFORMATION
IDENTIFICATION NUMBERS
RECORD..................................................1-1
Outboard motor serial number .........1-1
EMISSION CONTROL INFORMATION .1-2
SAFETY INFORMATION ........................1-3
IMPORTANT LABELS ............................1-5
BASIC BOATING RULES .......................1-6
FUELING INSTRUCTIONS...................1-10
Gasoline ............................................1-11
Engine oil ..........................................1-11
PROPELLER SELECTION .....................1-12
START-IN-GEAR PROTECTION...........1-13
6A1-9-1L 1 4/20/01 12:01 PM Page 5

1-1
E
401011
q
w
EMB10010
IDENTIFICATION NUMBERS
RECORD
OUTBOARD MOTOR SERIAL NUMBER
The outboard motor serial number is
stamped on the label attached to the port
side of the clamp-bracket. (2-hp model:
attached the upper part of the swivel
bracket.)
Record your outboard motor serial num-
ber in the spaces provided to assist you
in ordering spare parts from your Yama-
ha dealer or for reference in case your
outboard motor is stolen.
1Outboard motor serial number
2(2-hp model: outboard motor serial number)
YAMAHA MOTOR CO., LTD.
MADE IN JAPAN
PAYS D’ORIGINE JAPON
6A1-9-1L 1 4/20/01 12:01 PM Page 6

1-2
E
q
w
q
w
q
w
2
3
5
EMU01385
EMISSION CONTROL
INFORMATION
EMU01386
NORTH AMERICAN MODELS
This engine conforms to U.S. Environ-
mental Protection Agency (EPA) regula-
tions for marine SI engines. See the label
affixed to your engine for details.
Approval label of Emission control
certificate
This label is attached to the bottom cowl-
ing.
1Emission control information label
Existing Technology ; N/A
Manufactured date label
This label is attached to the clamp bracket
or the swivel bracket.
2Manufactured date label
EMISSION CONTROL INFORMATION
ENGINE FAMILY :
THIS ENGINE CONFORMS TO 2001 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.
FELs :
SPARK PLUG : IDLE SPEED : rpm IN NEUTRAL
SPARK PLUG GAP (mm) :
g/kw-hr
Manufactured:
6A1-9-1L 1 4/20/01 12:01 PM Page 7

1-3
E
8This product emits exhaust gases
which contain carbon monoxide, a col-
orless, odorless gas which may cause
brain damage or death when inhaled.
Symptoms include nausea, dizziness,
and drowsiness. Keep cockpit and
cabin areas well ventilated. Avoid
blocking exhaust outlets.
8Check throttle, shift, and steering for
proper operation before starting the
engine.
8Attach the engine stop switch lanyard
to a secure place on your clothing, or
your arm or leg while operating. If you
accidentally leave the helm, the lanyard
will pull from the switch, stopping the
engine.
8Know the marine laws and regulations
where you will be boating - and obey
them. Refer to “RULES OF THE ROAD”
section for basic boating rules.
8Stay informed about the weather.
Check weather forecasts before boat-
ing. Avoid boating in hazardous weath-
er.
8Tell someone where you are going:
leave a Float Plan with a responsible
person. Be sure to cancel the Float Plan
when you return.
8Use common sense and good judg-
ment when boating. Know your abili-
ties, and be sure you understand how
your boat handles under the different
boating conditions you may encounter.
Operate within your limits, and the lim-
its of your boat. Always operate at safe
speeds, and keep a careful watch for
obstacles and other traffic.
8Always watch carefully for swimmers
during the engine operation.
8Stay away from swimming areas.
EMU00917
SAFETY
INFORMATION
8Before mounting or operating the out-
board motor, read this entire manual.
Reading it should give you an under-
standing of the motor and its operation.
8Before operating the boat, read any
owner’s or operator’s manuals supplied
with it and all labels. Be sure you under-
stand each item before operating.
8Do not overpower the boat with this
outboard motor. Overpowering the
boat could result in loss of control. The
rated power of the outboard should be
equal to or less than the rated horse-
power capacity of the boat. If the rated
horsepower capacity of the boat is
unknown, consult the dealer or boat
manufacturer.
8Do not modify the outboard. Modifica-
tions could make the motor unfit or
unsafe to use.
8Never operate after drinking alcohol or
taking drugs. About 50% of all boating
fatalities involve intoxication.
8Have an approved personal flotation
device (PFD) on board for every occu-
pant. It is a good idea to wear a PFD
whenever boating. At a minimum, chil-
dren and non-swimmers should always
wear PFDs, and everyone should wear
PFDs when there are potentially haz-
ardous boating conditions.
8Gasoline is highly flammable, and its
vapors are flammable and explosive.
Handle and store gasoline carefully.
Make sure there are no gas fumes or
leaking fuel before starting the engine.
Q
6A1-9-1L 1 4/20/01 12:01 PM Page 8

1-4
E
8When a swimmer is in the water near
you shift into neutral and shut off the
engine.
8Be informed about boating safety.
Additional publications and informa-
tion can be obtained from many orga-
nizations, including the following:
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and Consumer
Affairs
U.S. Coast Guard Headquarters
Washington, D.C. 20593-0001
Boating Safety Hotline: [phone]
National Marine Manufacturers
Association (NMMA)
401 N. Michigan Ave.
Chicago, Il 60611
Marine Retailers Association of America
155 N. Michigan Ave.
Chicago, Il 60601
6A1-9-1L 1 4/20/01 12:01 PM Page 9

1-5
E
202063*
q
w
e
202055*
qw
202056*
q
w
EMB30010
IMPORTANT LABELS
WARNING LABELS
2
3
5
WARNING
●Be sure shift control is in neutral
before starting engine. (except 2HP)
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands,hair,and clothes away from flywheel
and other rotating parts while engine is running.
6A1-83625-41
1
WARNING
LEAKING FUEL COULD CAUSE A FIRE.
Before tilting up the engine or laying it on its side:
●Turn the fuel cock to the "closed" position.
●Tighten the air-vent screw on the fuel tank cap.
6A1-2415A-41
2
WARNING
This engine is equipped with a neutral starting device.
The engine will not start unless the shift control is
in neutral position. 6E0-83627-41
3
6A1-9-1L 1 4/20/01 12:01 PM Page 10

1-6
E
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 which does not have the
right-of-way has the duty to take posi-
tive and timely action to stay out of the
way of the Stand-On vessel. Normally,
you should not cross in front of the ves-
sel with the right-of-way. You should
slow down or change directions briefly
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 Inter-
national Rules and says,
‘In obeying and construing these
rules due regard shall be had to all
dangers of navigation and collision,
and to any special circumstances,
which may render a departure from
the above rules necessary in order to
avoid immediate danger.’
In other words, follow the standard rules
except when a collision will occur unless
both vessels try to avoid each other. If
that is the case, both vessels become
“Give-Way” vessels.
EMB40010
BASIC BOATING RULES
(Rules of the road)
Just as there are rules which apply
when you are driving on streets and
high ways, there are waterway rules
which apply when you are driving your
boat. These rules are used international-
ly, and are also enforced by the United
States Coast Guard and local agencies.
You should be aware of these rules, and
follow them whenever you encounter
another vessel on the water.
Several sets of rules prevail according to
geographic location, but are all basically
the same as the International Rules of
the Road. The rules presented here in
your Owner’s Manual are condensed,
and have been provided for your conve-
nience only. Consult your local U.S.
Coast Guard Auxiliary or Department of
Motor Vehicles for a complete set of
rules governing the waters in which you
will be using your boat.
STEERING AND SAILING RULES
AND SOUND SIGNALS
Whenever two vessels on the water
meet one another, one vessel has the
right-of-way; it is called the “stand-on”
vessel. The vessel which does not have
the right-of-way is called the “give-way”
or “burdened” vessel. These rules deter-
mine which vessel has the right-of-way,
and what each vessel should do.
6A1-9-1L 1 4/20/01 12:01 PM Page 11

1-7
E
RULES WHEN ENCOUNTERING
VESSELS
There are three main situations which
you may encounter with other vessels
which could lead to a collision unless
the Steering Rules are followed:
Meeting
(you are approaching another vessel
head-on)
Crossing
(you are travelling across the other
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 shaded 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
102045
should keep the other vessel 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.
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 other 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, remem-
ber that you should maintain course and
direction, 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
102046
102044
6A1-9-1L 1 4/20/01 12:01 PM Page 12

E
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 which can
navigate only in such a channel.
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 navigating in a
particular direction. The markings on
these buoys are oriented from the per-
spective of being entered from seaward
(the boater is going towards the port).
This means that red buoys are passed
on the starboard (right) side when pro-
ceeding from open water into port, and
black buoys are to port (left) side. When
navigating out of port, your position
with respect to the buoys should be
reversed; 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 distinctive
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 gen-
eral information.
maintain its course and speed. You must
stay out of its way until you are clear of
it. Likewise, if another vessel is passing
you, you should maintain your speed
and direction so that the other vessel
can steer itself around you.
OTHER SPECIAL SITUATIONS
There are three other rules you should
be aware of when driving your boat
around other 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 opera-
tor of a power-driven vessel is preparing
to go around a bend that may obstruct
the view of other water vessels, the
operator should sound a prolonged
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 proceed 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 which are fishing with nets,
lines or trawls are considered to be“fish-
ing vessels” under the International
Rules. Vessels with trolling lines are not
considered fishing vessels. Fishing ves-
sels have the right-of-way regardless of
position. Fishing vessels cannot, howev-
er, 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:
1-8
6A1-9-1L 1 4/20/01 12:01 PM Page 13

E
111
A
111
Proceeding toward head
of navigation from seaward
CAN BUOY
Odd number. Leave to port.
OR
SECONDARY CHANNEL BUOYS
STARTS NEW NUMBERING SYSTEM
old new
C " 1 "
NUN BUOY
Even number. Leave to starboard
N " 2 "
No change
BUOY
COLOR CODE
BLACK
RED
GREEN
" A "
" 2 "
"
1 "
"
3 "
" 4 "
"
5 "
"
7 "
N " 2 "
"
6 "
C " 1 "
RB " L "
RG " L "
or
SECONDARY CHANNEL
MAIN CHANNEL
old new
22
2222
AA
LL
LL
Odd number. increasing toward head of naviga-
MAIN CHANNEL BUOYS
" 1 " " 3 " " 5 " " 7 "
tion.Leave to port (left) proceeding upstream.
LIGHTED BUOY (Port Hand)`
White Light Green Light
old new
old new
old new
LIGHTED BUOY (Starboard Hand)`
" 2 " " 4 " " 6 "
Even number,increasing toward head of naviga-
tion. Leave to starboard (right) proceeding up-
stream.
White Light Red Light
" A "
LIGHTED SAFE WATER BUOY
No number. Marks midchannel, pass on either
side. Letter has no lateral significance, used for
No number. Topmost band red
- preferred
Top Mark
White Light
White Light
OR
OR
LIGHTED PREFERRED CHANNEL TO
RB
" L " RG " L "
PORT BUOY
identification and location purposes.
channel is to left of buoy. Letter has no lateral
significance, used for identification and location
purposes.
Red Light
Red or
White Light
OR
102052
1-9
Remember, markings may vary by geo-
graphic location. Always consult local
boating authorities before driving your
boat in unfamiliar waters.
6A1-9-1L 1 4/20/01 12:01 PM Page 14

E
EMU00016
FUELING INSTRUCTIONS
w
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
8Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.
8Stop engine before refueling.
8Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat.
8Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags.
8Do not overfill the fuel tank.
8Tighten the filler cap securely after
refueling.
8If you should swallow some gasoline
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
8If any gasoline spills onto your skin,
immediately wash with soap and
water. Change clothing if gasoline
spills on it.
8Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro-
static sparks.
cC
Use only new clean gasoline which has
been stored in clean containers and is
not contaminated with water or foreign
matter.
1-10
6A1-9-1L 1 4/20/01 12:01 PM Page 15

1-11
E
EMU00018
GASOLINE (PETROL)
If knocking or pinging occurs, use a dif-
ferent brand of gasoline or premium
unleaded fuel. If unleaded gasoline is not
available, then leaded regular gasoline
can be used.
EMU00027
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing
methanol. Gasohol containing ethanol
can be used if ethanol content does not
exceed 10% and the fuel meets minimum
octane ratings. Gasohol containing
methanol is not recommended by Yama-
ha because it can cause fuel system dam-
age or engine performance problems.
EMU00858
ENGINE OIL
If the recommended engine oil is not
available, another 2-stroke engine oil
with a NMMA-certified TC-W3 rating may
be used.
Recommended engine oil:
YAMALUBE 2 STROKE OUTBOARD
OIL
Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of 86 (Pump
Octane Number) = (R+M)/2
6A1-9-1L 1 4/20/01 12:01 PM Page 16

1-12
E
EMU01395
PROPELLER SELECTION
The performance of your outboard motor
will be critically affected by your choice
of propeller, as an incorrect choice could
adversely affect performance and could
also seriously damage the motor. Engine
speed depends on the propeller size and
boat load. If engine speed is too high or
too low for good engine performance,
this will have an adverse effect on the
engine.
Yamaha outboard motors are fitted with
propellers chosen to perform well over a
range of applications, but there may be
uses where a propeller with a different
pitch would be more appropriate. For a
greater operating load, a smaller-pitch
propeller is more suitable as it enables
the correct engine speed to be main-
tained. Conversely, a larger-pitch pro-
peller is more suitable for a smaller oper-
ating load.
Yamaha dealers stock a range of pro-
pellers, and can advise you and install a
propeller on your outboard that is best
suited to your application.
6A1-9-1L 1 4/20/01 12:01 PM Page 17

1-13
E
602024
7-1/4 x4 -A
123
602025
7-1/4 x7-1/4-BA
12 3
EMU01209
START-IN-GEAR PROTECTION
5
Yamaha outboard motors or Yamaha
approved remote control units are
equipped with start-in-gear protection
device(s). This feature permits the engine
to be started only when it is Neutral.
Always select Neutral before starting the
engine.
NOTE:
At full throttle and under a maximum
boat load, the engine’s rpm should be
within the upper half of the full throttle
operating range, as listed in “SPECIFICA-
TIONS” on page 4-1. Select a propeller
which fulfills this requirement.
If operating under conditions which allow
the engine’s rpm to rise above the maxi-
mum recommended range (such as light
boat loads), reduce the throttle setting to
maintain the rpm in the proper operating
range.
1Propeller diameter (in inches)
2Propeller pitch (in inches)
3Type of propeller (propeller mark)
Refer to the section “CHECKING PRO-
PELLER” for instructions on propeller
removal and installation.
2
3/5
6A1-9-1L 1 4/20/01 12:01 PM Page 18