Yamaha YZ450F Owner's Service Manual page 24

Tool name/Part number
FI diagnostic tool
YU-03182, 90890-03182
Fuel pressure adapter
YM-03186, 90890-03186
Test harness S-pressure sensor
(3P)
YU-03207, 90890-03207
Test harness-speed sensor (3P)
YU-03208, 90890-03208
FI diagnostic tool sub-lead
YU-03212, 90890-03212
Valve guide remover & installer set
90890-04016
Valve spring compressor
YM-4019, 90890-04019
Clutch holding tool
YM-91042, 90890-04086
How to use
This tool is used to check the fault
codes and diagnose any problems.
This tool is used to attach the pres-
sure gauge.
This tool is connected between the
intake air pressure sensor and the
wire harness and is used to mea-
sure the voltage.
This tool is connected between the
throttle position sensor and the wire
harness and is used to measure the
voltage.
This tool is used to connect the FI di-
agnostic tool to a battery.
This tool is needed to remove and
install the valve guide.
This tool is needed to remove and
install the valve assemblies.
This tool is used to hold the clutch
when removing or installing the
clutch boss securing nut.
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SPECIAL TOOLS
Illustration