This manual is designed primarily for use by motorcycle mechanics in a properly equipped shop,
although it contains enough detail and basic information to make it useful to the motorcycle user
who desires to carry out his own basic maintenance and repair work. Since a certain basic knowledge
of mechanics, the proper use of tools, and workshop procedures must be understood in order to carry
out maintenance and repair satisfactorily; the adjustments, maintenance, and repair should be carried
out only by qualified mechanics whenever the owner has
experience, or has doubts as to
his ability to do the work, so that the motorcycle can be operated safely.
In order to perform the work efficiently and to avoid costly mistakes, the mechanic should read
the text, thoroughly familiarizing himself with the procedures before starting work, and then do the
work carefully in a clean area. Whenever special tools or equipment is specified, makeshift, tools or
equipment should not be used. Precision measurements can only be made if the proper instruments
are used, and the use of substitute tools may adversely affect safe operation of the motorcycle.
Whenever you see the symbols shown below, heed their instructions! Always follow safe operating
and maintenance practices.
WARNING • This warning symbol identifies special instructions or procedures which, if not correctly
..._ _ _ _ .. _ followed, could result in personal injury, or loss of life.
This caution symbol ~dentifies special instruc~ions or p~ocedures which, if not strictly
,,' : ..,..:.!-~-~ .....
:~..,..,..-' . 1:-1
observed, could result m damage to, or destruction of equipment.
"NOTE" indicates points of particular interest for more efficient and convenient operation.
This manual is divided into the following chapters:
The adjustment chapter gives the procedure for all adjustments which may become necessary
periodically and which do not involve major disassembly.
This chapter shows the best method for the removal, disassembly, assembly, and installation
which are necessary for maintenance and repair. Do not disassemble the component parts further
than explained here. Since assembly and installation are usually the reverse of disassembly and
removal, assembly and installation are not explained in detail in some cases. Instead, assembly
notes and installation notes are provided to explain special points.
In cases the removal procedures are apparent without explanation such as for the seat or side
stand, no information is given.
The procedures for inspection and repair are described in detail in this chapter.
The appendix in the back of this manual contains miscellaneous information, including a special
tool list and a wiring diagram.
The maintenance and repair procedures, that are unique to later year units since the first publi-
cation of the Service Manual, are explained in this chapter per one year unit.
Since the Service Manual is based on the first production units of the 1979 2250-A 1, there may be
minor discrepancies between some vehicles and the illustrations and text in this manual. Explanations
on major changes and additions pertaining to later year units will be added in the end of the supple-
ment by a new edition, as required.