Yamaha YZF-R1S Service Manual - Gen
1-10
SPECIAL TOOLS
GEN
INFO
Tool No.
Tool name / Function
Illustration
90890-01441
YM-01441
Fork spring compressor
This tool is used to disassemble or
assemble the front fork legs.
90890-01442
YM-01442
Fork seal driver
This tool is used to install the front fork’s oil
seal and dust seal.
90890-03094
YU-08030
Vacuum gauge
This guide is used to synchronize the car-
buretors.
Compression
gauge
90890-03081
YU-33223
Adapter
90890-04136
Compression gauge
Compression gauge adapter
These tools are used to measure engine
compression.
Valve spring compressor
90890-04019
YM-04019
Attachment
90890-04108
YM-01253
90890-04114
YM-4114
Valve spring compressor
Valve spring compressor attachment
These tools are used to remove or install
the valve assemblies.
Middle driven shaft
bearing driver
90890-04058
YM-4058
Mechanical seal
installer
90890-04078
YM-33221
Middle driven shaft bearing driver
Mechanical seal installer
These tools are used to install the water
pump seal.
90890-04086
YM-91042
Clutch holding tool
This tool is used to hold the clutch boss
when removing or installing the clutch boss
nut.
90890-04111
90890-04116
YM-4116
Valve guide remover
This tool is used to remove or install the
valve guides.
90890-04112
90890-04117
YM-4117
Valve guide installer
This tool is used to install the valve guides.