FOREWORD
This Supplementary Service Manual has been
prepared to introduce new service and new
data for the MZ125/MZ125R, MZ175/MZ175R,
MZ200/MZ200R.
For complete information on service proce-
dures, it is necessary to use this Supplementary
Service Manual together with following manual:
TIP
This manual was written by the YAMAHA
MOTOR POWERED PRODUCTS CO., LTD.
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 Multi-Purpose Engine have a basic
understanding of the mechanical precepts and
procedures inherent to Multi-Purpose Engine
repair technology. Without such knowledge,
attempted repairs or service to this model may
render it unfit for use and/or unsafe.
YAMAHA MOTOR POWERED PRODUCTS
CO., Ltd. is continually striving to further
improve all models manufactured by Yamaha.
Modifications and significant changes in speci-
fications or procedures will be forwarded to all
Authorized Yamaha dealers and will, where
applicable, appear in future editions of this
manual.
MZ125/MZ125R, MZ175/MZ175R,
MZ200/MZ200R
SUPPLEMENTARY SERVICE MANUAL
©2010 by YAMAHA MOTOR POWERED
PRODUCTS CO., LTD.
1st Edition, December 2010
All rights reserved. Any reprinting or
unauthorized use without the written
permission of YAMAHA MOTOR
POWERED PRODUCTS CO., LTD.
is expressly prohibited.
MZ125, MZ175
SERVICE MANUAL:
7NN-28197-E0 (310083)
HOW TO USE THIS MANUAL
PARTICULARLY IMPORTANT
INFORMATION
Particularly important information is distin-
guished in this manual by the following
notations.
This is the safety alert symbol. It is used to
alert you to potential personal injury haz-
ards. Obey all safety messages that follow
this symbol to avoid possible injury or
death.
WARNING
A WARNING indicates a hazardous situa-
tion which, if not avoided, could result in
death or serious injury.
NOTICE
A NOTICE indicates special precautions
that must be taken to avoid damage to the
machine or other property.
TIP
A TIP provides key information to make
procedures easier or clearer.
MANUAL FORMAT
The procedures in this manual are organized
in a sequential, step-by-step format. The infor-
mation has been compiled to provide the
mechanic with an easy to read, handy refer-
ence that contains comprehensive explana-
tions 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.,
9 Bearings
Pitting/damage → Replace.
EXPLODED DIAGRAM
Each chapter provides exploded diagrams
before each disassembly section for ease in
identifying the correct disassembly and
assembly procedures.
