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GEN
INFO
SPECIAL TOOLS
EBS00021
SPECIAL TOOLS
The following special tools are necessary for complete and accurate tune-up and assembly. Use
only the appropriate special tools; this will help prevent damage caused by the use of inappropriate
tools or improvised techniques. Special tools may differ by shape and part number from country to
country. In such a case, two types are provided.
When placing an order, refer to the list provided below to avoid any mistakes.
For US and CDN
P/N. YM-, YU-, YS-, YK-, ACC-
Except for US and CDN
P/N. 90890-
Tool No.
Tool name/How to use
Illustration
90890-01083
YU-01083-1
Slide hammer bolt
Slide hammer bolt 6 mm
This tool is used to remove the rocker
arm shaft.
90890-01084
YU-01083-3
Weight
This tool is used to remove the rocker
arm shaft.
90890-01135
YU-01135-B
Crankcase separating tool
Crankcase separator
This tool is used to separate the crank-
case.
90890-01229
YM-01229
Coupling gear/middle shaft tool
Gear holder
This tool is needed when removing or
installing the coupling gear nut.
90890-01243
YM-01253-1
Valve spring compressor attachment
Valve spring compressor adapter
(26 mm)
This tool is needed to remove and install
the valve assemblies.
YU-01083-3