SPECIAL TOOLS
1-18
Clutch holder
90890-04086
YM-91042
This tool is used to hold the
clutch when removing or in-
stalling the clutch boss secur-
ing nut.
Valve lapper
90890-04101
Valve lapping tool
YM-A8998
This tool is used to remove
the valve lifter or lap the
valve.
Valve spring compressor
90890-04019
YM-04019
This tool is used to discon-
nect or connect the valve and
the valve spring.
Valve spring compressor
adapter 22 mm
90890-04108
YM-04108
This tool is used to discon-
nect or connect the valve and
the valve spring.
Valve guide remover (ø5)
90890-04097
Valve guide remover (5.0
mm)
YM-04097
This tool is used to replace
the valve guide.
Valve guide installer (ø5)
90890-04098
Valve guide installer (5.0
mm)
YM-04098
This tool is used to replace
the valve guide.
Valve guide reamer (ø5)
90890-04099
Valve guide reamer (5.0 mm)
YM-04099
This tool is used to replace
the valve guide.
Tool name/Part number How to use Illustration