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GEN
INFO
SPECIAL TOOLS
YS-1880-A, 90890-01701
Sheave holder
This tool is used for when loosening or tightening the
flywheel magneto securing nut.
YU-3112-C, 90890-03112
Pocket tester
Use this tool to inspect the coil resistance, output
voltage and amperage.
YM-33277-A, 90890-03141
Timing light
This tool is necessary for checking ignition timing.
YM-4019, 90890-04019
Valve spring compressor
This tool is needed to remove and install the valve
assemblies.
YM-91042, 90890-04086
Clutch holding tool
This tool is used to hold the clutch when removing or
installing the clutch boss securing nut.
YM-4111, 90890-04111
YM-4116, 90890-04116
Valve guide remover
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to remove and install the valve
guide.
YM-4112, 90890-04112
YM-4117, 90890-04117
Valve guide installer
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to install the valve guide.
YM-4113, 90890-04113
YM-4118, 90890-04118
Valve guide reamer
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to rebore the new valve guide.
YM-04141, 90890-04141
Rotor puller
This tool is used to remove the flywheel magneto.
Part number
Tool name/How to use
Illustration
90890-03112
90890-04111
90890-04116
90890-04141
Содержание WR250F(W)
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