Yamaha 2004 YP400 Service Manual page 26

Tool No.
Timing light
90890-03141
YU-03141
This tool is used to check the ignition tim-
ing.
Pressure gauge
90890-03153
YU-03153
This tool is used to measure fuel pres-
sure.
Adapter
90890-03181
This tool is used to measure fuel pres-
sure.
Valve spring compres- Valve spring compressor
sor
Valve spring compressor attachment
90890-04019
YM-04019
Valve spring compres-
sor attachment
These tools are used to remove or install
90890-01243
the valve assemblies.
YM-01253-1
Middle driven shaft bearing driver
Middle driven shaft
Mechanical seal installer
bearing driver
90890-04058
YM-04058
Mechanical seal
installer These tools are used to install the water
90890-04145
pump seal.
Valve guide remover (5 mm)
90890-04097
YM-04097
This tool is used to remove or install the
valve guides.
Valve guide installer (5 mm)
90890-04098
YM-04098
This tool is used to install the valve
guides.
Valve guide reamer (5 mm)
90890-04099
YM-04099
This tool is used to rebore the new valve
guides.
Tool name/Function
1 - 15
SPECIAL TOOLS
GEN
INFO
Illustration