Yamaha Waverunner 3 Manual

Wav e R u n n e r
FX140
F1B-28197-1E-11
*LIT186160238*
LIT-18616-02-38
SERVICE MANUAL 

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NOTICE
This manual has been prepared by Yamaha 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 Yamaha has a policy of continuously...

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HOW TO USE THIS MANUAL
MANUAL FORMAT
All of the procedures in this manual are organized in a sequential, step-by-step format. The informa-
tion has been compiled to provide the mechanic with an easy to read, handy reference that contains
comprehensive explanations of all disassembly, repair, assembly, and inspection 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...

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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 to the machine
operator, passenger(s), a bystander, or a person inspecting or repairing the watercraft.
CAUTION:
A CAUTION indicates special precautions that must be taken to avoid damage to the water-
craft.
NOTE:
A...

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HOW TO USE THIS MANUAL
1To help identify parts and clarify procedure steps, there are exploded diagrams at the start of
each removal and disassembly section.
2Numbers are given in the order of the jobs in the exploded diagram.
3Symbols indicate parts to be lubricated or replaced (see “SYMBOLS”). 
4A job instruction chart accompanies the exploded diagram, providing the order of jobs, names of
parts, notes in jobs, etc.
5Dimension figures and the number of parts, are provided for fasteners that require a...

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A50001-1-4
SYMBOLS
Symbols 1 to 9 are designed as thumb-tabs
to indicate the content of a chapter.
1General Information
2Specifications
3Periodic Inspection and Adjustment
4Fuel System 
5Power Unit
6Jet Pump Unit
7Electrical System
8Hull and Hood
9Trouble analysis
Symbols 0 to E indicate specific data:
0Special tool
ASpecified liquid
BSpecified engine speed
CSpecified torque
DSpecified measurement
ESpecified electrical value 
[Resistance (
Ω), Voltage (V), Electric current (A)]
Symbol F to H in an...

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INDEX
GENERAL INFORMATION1GEN 
INFO
SPECIFICATIONS2SPEC
PERIODIC INSPECTION AND 
ADJUSTMENT
3INSP 
ADJ
FUEL SYSTEM4FUEL
POWER UNIT5POWR
JET PUMP UNIT6JET
PUMP
ELECTRICAL SYSTEM7ELEC
HULL AND HOOD8HULL 
HOOD
TROUBLE ANALYSIS9TRBL 
ANLS
–+
A30000-0 

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GEN
INFO
1
2
3
4
5
6
7
8
9
CHAPTER  1
GENERAL INFORMATION
IDENTIFICATION NUMBERS ......................................................................... 1-1
PRIMARY l.D. NUMBER ........................................................................... 1-1
ENGINE SERIAL NUMBER ...................................................................... 1-1
JET PUMP UNIT SERIAL NUMBER ......................................................... 1-1
HULL IDENTIFICATION NUMBER (H.l.N.)...

1-1
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GEN
INFO
IDENTIFICATION NUMBERS
A60700-0*
IDENTIFICATION NUMBERS
PRIMARY l.D. NUMBER
The primary l.D. number is stamped on a label
attached to the inside of the engine compart-
ment.
Starting primary l.D. number:
F1B: 800101
ENGINE SERIAL NUMBER
The engine serial number is stamped on a
label attached to the engine unit.
Starting serial number:
60E: 000101
JET PUMP UNIT SERIAL NUMBER
The jet pump unit serial number is stamped on
a label attached to the intermediate housing.
Starting serial number:...