Yamaha VMX12H, Supplementary Service Manual

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NOTICE
This manual was written by the Yamaha Motor Company primarily for use by Yamaha dealers and
their qualified mechanics. It
is not possible to put an entire mechanic's education into one manual,
so
it is assumed that persons using this book to perform maintenance and repairs on Yamaha motor-
cycles have a basic understanding of the mechanical concepts and procedures inherent in motorcycle
repair technology. Without such knowledge, attempted repairs or service t o this model may render
it
unfit to use and/or unsafe.
This model has been disgned and manufactured to perform within certain specifications in regard t o
performance and emissions. Proper service with the correct tools
is necessary to ensure that the
motorcycle will operate as designed. If there is any question about a service procedure,
it
is
impera-
tive that you contact a Yamaha dealer for any service information changes that apply t o this model.
This policy is intended to provide the customer with the most satisfaction from his motorcycle and
to conform with federal environmental quality objectives.
Yamaha Motor Company, Ltd. is continually striving to improve all models manufactured by Yamaha.
Modifications and significant changes in specifications or procedures will be forwarded to
all
Authorized Yamaha dealers and will, where applicable, appear in future editions of this manual.
NOTE:
This Service Manual contains information regarding periodic maintenance to the emission control
system for the
Please read this material carefully.
TECHNICAL PUBLICATIONS
SERVICE
DIVISION
MOTORCYCLES OPERATIONS
MOTOR CO., LTD.
HOW T O USE THIS MANUAL
PARTICULARLY IMPORTANT INFORMATION
This material is distinguished by the following notation.
NOTE:
A NOTE
provides key information to make procedures easier or clearer.
A CAUTION indicates special procedures that must be followed t o avoid damage to
the motorcycle.
A WARNING
indicates special procedures that must be followed t o avoid to
a motorcycle operator or person inspecting or repairing the motorcycle.
MANUAL FORMAT
All of the procedures in this manual are organized in sequential, step-by-step format. The informa-
tion has been compiled to provide the mechanic with an easy to read, handy reference that contains
comprehensiveexplanations of all disassembly, repair, assembly, and inspection operations.
In this revised format, the condition of a faulty component will precede an arrow symbol and
course of action required will follow the symbol,
Bearings
Replace.
EXPLODED DIAGRAM
Each chapter provides exploded diagrams before each disassembly section for ease in
correct disassembly and assembly procedures.