Yamaha MIO Service Manual page 17

Tool No.
Compression gauge
90890-03081
These tools are used to measure the
engine compression.
Pocket tester
90890-03112
These instruments are invaluable for
checking the electrical system.
Engine tachometer
90890-03113
This tool is needed for detecting engine
rpm.
Valve guide remover (ø5)
90890-04097
This tool is needed to remove and
install the valve guide.
Valve guide installer (ø5)
90890-04098
This tool is needed to install the valve
guide.
Valve guide reamer (ø5)
90890-04099
This tool is needed to rebore the new
valve guide.
Valve lapper
90890-04101
This tool is used for lapping the valve.
Ignition checker
90890-06754
This instrument is necessary for check-
ing the ignition system components.
SPECIAL TOOLS
Tool name/Usage
1 - 7
GEN
INFO
Illustration