This manual has been prepared by the Yamaha Motor Company, Ltd. primarily for use by
Yamaha dealers and their trained mechanics when performing maintenance procedures and
repairs to Yamaha equipment. It has been written to suit the needs of persons who have a
basic understanding of the mechanical and electrical concepts and procedures inherent in the
work, for without such knowledge attempted repairs or service to the equipment could render
it unsafe or unfit for use.
Because the Yamaha Motor Company, Ltd. has a policy of continuously improving its products, models may differ in detail from the descriptions and illustrations given in this publication. Use only the latest edition of this manual. Authorized Yamaha dealers are notified
periodically of modifications and significant changes in specifications and procedures, and
these are incorporated in successive editions of this manual.
CAUTION
USE UNLEADED STRAIGHT GASOLINE ONLY
• Gasoline containing lead can cause performance
lose and engine damage.
• Do not use gasoline mixed with oil (premix).
• Use YAMALUBE 2 stroke outboard oil or another
2-stroke engine oil with a BIA-certified TC-W3 rate.
All of the procedures in this manual are organized in a sequential, step-by-step format. The
information has been compiled to provide the mechanic with an easy to read, handy reference that contains comprehensive explanations of all disassembly, repair, assembly, and
check operations.
In this revised format, the condition of a faulty component will precede an arrow symbol and
the course of action required will follow the symbol, e.g.,
• Bearings
Pitting/scratches → Replace.
To assist you in finding your way through this manual, the section title and major heading is
given at the top of every page.
MODEL INDICATION
Multiple models are mentioned in this manual and their model indications are noted as follows.
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Model nameZ200NETOLZ200NETO
USA and
Canada name
IndicationZ200NETOLZ200NETO
Z200TRLZ200TR
ILLUSTRATIONS
The illustrations within this service manual represent all of the designated models.
CROSS REFERENCES
The cross references have been kept to a minimum. Cross references will direct you to the
appropriate section or chapter.
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IMPORTANT INFORMATION
In this Service Manual particularly important information is distinguished in the following
ways.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
WARNING
Failure to follow WARNING instructions could result in severe injury or death
operator, a bystander, or a person inspecting or repairing the outboard motor.
to the machine
CAUTION:
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.
1
2
HOW TO USE THIS MANUAL
The main points regarding removing/installing and disassembling/assembling procedures
are shown in the exploded views.
The numbers in the exploded views indicate the required sequence of the procedure and
should be observed accordingly.
3
Symbols are used in the exploded views to indicate important aspects of the procedure.
A list of meanings for these symbols is provided on the following page.
4
It is important to refer to the job instruction charts at the same time as the exploded views.
These charts list the sequence that the procedures should be carried out in, as well as providing explanations on part names, quantities, dimensions and important points relating
to each relevant task.
In addition to the exploded views and job instruction charts, this manual provides individ-
10 × 25 mm
D
L
ual illustrations when further explanations are required to explain the relevant procedure.
1
2
3
4
5
6
7
8
9
0
A
B
C
D
E
F
G
H
E
12
GEN
INFO
34
SPEC
INSP
FUEL
ADJ
56
POWR
78
BRKT
90
LOWR
–+
ELEC
TRBL
ANLS
AB
SYMBOLS
Symbols 1 to 9 are designed as thumbtabs to indicate the content of a chapter.
General information
Specifications
Periodic inspections and adjustments
Fuel system
Power unit
Lower unit
Bracket unit
Electrical systems
Trouble analysis
Symbols 0 to E indicate specific data.
Special tool
Specified liquid
Specified engine speed
Specified torque
Specified measurement
Specified electrical value
[Resistance (
(A)]
Ω
), Voltage (V), Electric current
CD
T
.
R
.
EF
E
GH
A
IJ
GM
KL
LT
271
MN
LT
572
M
LT
242
SS
LT
4
Symbol F to H in an exploded diagram
indicate the grade of lubricant and the location of the lubrication point.
Apply Yamaha 2-stroke outboard motor oil
(TC-W3)
Apply water resistant grease
(Yamaha grease A, Yamaha marine grease)
Apply molybdenum disulfide oil
Symbols I to N in an exploded diagram
indicate the grade of the sealing or locking
agent and the location of the application
point.
I Apply Gasket Maker
J Apply Yamabond #4
(Yamaha bond number 4)
K Apply LOCTITE® No. 271 (Red LOCTITE)
L Apply LOCTITE® No. 242 (Blue LOCTITE)
M Apply LOCTITE® No. 572
N Apply silicon sealant
The outboard motor’s serial number is
stamped on a label which is attached to the
port side of the clamp bracket.
NOTE:
If the serial number label is removed,
“VOID” marks will be appear on the label.
Model name
Approved model code
Transom height
Serial number
STARTING SERIAL NUMBERS
The starting serial number blocks are as follows:
1
Model name Approved
Worldwide USA Canada
Z200NETO Z200TR Z200TR 6G6 X:100101 -
LZ200NETOLZ200TR — 6K1 X:100101 -
model
code
Starting
serial
number
1-1
GEN
INFO
SAFETY WHILE WORKING
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SAFETY WHILE WORKING
The procedures given in this manual are
those recommended by Yamaha to be followed by Yamaha dealers and their
mechanics.
FIRE PREVENTION
Gasoline (petrol) is highly flammable.
Petroleum vapor is explosive if ignited.
Do not smoke while handling gasoline and
keep it away from heat, sparks and open
flames.
VENTILATION
Petroleum vapor is heavier than air and is
deadly if inhaled in large quantities. Engine
exhaust gases are harmful to breathe.
When test-running an engine indoors,
maintain good ventilation.
1
SELF-PROTECTION
Protect your eyes with suitable safety
glasses or safety goggles, when grinding or
when doing any operation which may
cause particles to fly off. Protect hands and
feet by wearing safety gloves or protective
shoes if appropriate to the work you are
doing.
OILS, GREASES AND SEALING
FLUIDS
Use only genuine Yamaha oils, greases and
sealing fluids or those recommended by
Yamaha.
1-2
GEN
INFO
SAFETY WHILE WORKING
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Under normal conditions of use, there
should be no hazards from the use of the
lubricants mentioned in this manual, but
safety is all-important, and by adopting
good safety practices, any risk is minimized.
A summary of the most important precautions is as follows:
1.While working, maintain good standards of personal and industrial
hygiene.
2.Clothing which has become contaminated with lubricants should be
changed as soon as practicable, and
laundered before further use.
3.Avoid skin contact with lubricants; do
not, for example, place a soiled wipingrag in your pocket.
4.Hands and any other part of the body
which have been in contact with lubricants or lubricant-contaminated clothing, should be thoroughly washed with
hot water and soap as soon as practicable.
5.To protect the skin, the application of a
suitable barrier cream to the hands
before working, is recommended.
6.A supply of clean lint-free cloths should
be available for wiping purposes.
GOOD WORKING PRACTICES
1.The right tools
Use the recommended special tools to
protect parts from damage. Use the
right tool in the right manner – do not
improvise.
2.Tightening torque
Follow the tightening torque instructions. When tightening bolts, nuts and
screws, tighten the large sizes first, and
tighten inner-positioned fixings before
outer-positioned ones.
1-3
GEN
INFO
SAFETY WHILE WORKING
3.Non-reusable items
DISASSEMBLY AND ASSEMBLY
1.Clean parts with compressed air when
2.Oil the contact surfaces of moving parts
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Always use new gaskets, packings, Orings, split-pins, circlips, etc., on reassembly.
disassembling.
before assembly.
3.After assembly, check that moving parts
operate normally.
4.Install bearings with the manufacturer’s
markings on the side exposed to view,
and liberally oil the bearings.
5.When installing oil seals, apply a light
coating of water-resistant grease to the
outside diameter.
1-4
GEN
INFO
1
SPECIAL TOOLS
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1
a
2
4
6
78
9
b
3
5
ba
SPECIAL TOOLS
Using the correct special tools recommended by Yamaha, will aid the work and
enable accurate assembly and tune-up.
Improvising and using improper tools can
damage the equipment.
NOTE:
• For USA and Canada, use part numbers
that start with “J-”, “YB-”, “YM-”, “YS-”,
“YU-” or “YW-”.
• For worldwide, use part numbers that
start with “90890-”.
Check the engine condition by using a
personal computer when it is connected
to the Electronic Control Unit (ECU).
Diagnosis:
Indicates the name of a failed part.
Diagnosis record:
Displays the name of the part whose diagnosis is detected, along with the engine
running total hours.
Static test:
Checks operation sound and ignition sparks
by activating the electric fuel pump, electric
oil pump, injector and spark plug while the
engine is stopped.
Dynamic test:
Checks the engine for operation through
any change in its speed by stopping the
operation of the spark plug on each cylinder
while the engine is in the neutral position.
Engine monitor:
Indicates information on the sensors and
switches by converting it to each value
while the engine is running.
Data logger:
Indicates in numeric values the engine
speed, throttle opening voltage, oxygen
density sensor voltage, water temperature
sensor voltage and fuel pressure sensor
voltage that occurred within 13 minutes.
ECU information:
Displays the ECU identification number.
NOTE:
To use any of these functions a personal
computer, connection cables, adapter and
communication software are required.
The personal computer should be compatible with Windows
CD-ROM and the RS232C terminal.