Yamaha YZ 2018 Series Owner's Service Manual page 26

Tool name/Part number
Valve spring compressor
90890-04019
Valve spring compressor
YM-04019
Spacer (crankshaft installer)
90890-04081
Pot spacer
YM-91044
Universal clutch holder
90890-04086
Universal clutch holder
YM-91042
Valve guide remover (ø5)
90890-04097
Valve guide remover (5.0
mm)
YM-04097
Valve guide installer (ø5)
90890-04098
Valve guide installer (5.0
mm)
YM-04098
Valve guide reamer (ø5)
90890-04099
Valve guide reamer (5.0 mm)
YM-04099
How to use
This tool is used to discon-
nect or connect the valve and
the valve spring.
This tool is used to install the
crankshaft.
This tool is used to hold the
clutch when removing or in-
stalling the clutch boss secur-
ing nut.
This tool is used to replace
the valve guide.
This tool is used to replace
the valve guide.
This tool is used to replace
the valve guide.
1-14
SPECIAL TOOLS
Illustration
YM-91044