Yamaha PZ50W Service Manual page 15

SPECIAL TOOLS
• 40 and 50 mm bearing driver
P/N: YM-04058
90890-04058
• Mechanical seal installer
P/N: YM-04145
90890-04145
These tools are used to install the water pump seal.
• Rotor holding tool
P/N: YU-01235
90890-01235
This tool is used to hold the camshaft sprocket.
• Valve guide remover (ø4)
P/N: YM-04111
90890-04111
This tool is used to remove or install the valve guides.
• Valve guide installer (ø4)
P/N: YM-04112
90890-04112
This tool is used to install the valve guides.
• Valve guide reamer (ø4)
P/N: YM-04113
90890-04113
This tool is used to rebore the new valve guides.
• Valve lapper
P/N: 90890-04101
This tool is needed to remove and install the valve lifters.
• Piston ring compressor
P/N: YM-08037
90890-05158
This tool is used to compress the piston rings when installing the piston
into the cylinder.
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