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Tool name/Part number
Clutch holding tool
YM-91042, 90890-04086
Valve guide remover
Intake 4.5 mm (0.18 in)
Exhaust 5.0 mm (0.20 in)
YM-4116, 90890-04116
YM-4097, 90890-04097
Valve guide installer
Intake 4.5 mm (0.18 in)
Exhaust 5.0 mm (0.20 in)
YM-4117, 90890-04117
YM-4098, 90890-04098
Valve guide reamer
Intake 4.5 mm (0.18 in)
Exhaust 5.0 mm (0.20 in)
YM-4118, 90890-04118
YM-4099, 90890-04099
Crankcase separating tool
YU-A9642
90890-04152
Dynamic spark tester
YM-34487
Ignition checker
90890-06754
How to use
This tool is used to hold the clutch
when removing or installing the
clutch boss securing nut.
This tool is needed to remove and
install the valve guide.
This tool is needed to install the
valve guide.
This tool is needed to rebore the
new valve guide.
These tool is used to remove the
crankshaft from either case.
This instrument is necessary for
checking the ignition system compo-
nents.
1-6
SPECIAL TOOLS
Illustration

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Comments to this Manuals

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Latest comments:
  • nick Jan 26, 2016 10:47:
    The download is jacked up, so it's only really viewable on the site, but can't really complain since it's free.