Yamaha YZ450FA 2011 Owner's Service Manual page 28

Tool name/Part number
Pressure gauge.
YU-03153, 90890-03153
FI diagnostic tool
YU-03182, 90890-03182
Fuel pressure adapter
YM-03186, 90890-03186
Test harness S-pressure sen-
sor (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 & in-
staller set
90890-04016
Valve spring compressor
YM-4019, 90890-04019
How to use
This tool is used to measure
the fuel pressure.
This tool is used to check the
fault codes and diagnose any
problems.
This tool is used to attach the
pressure gauge.
This tool is connected be-
tween the intake air pressure
sensor and the wire harness
and is used to measure the
voltage.
This tool is connected be-
tween the throttle position
sensor and the wire harness
and is used to measure the
voltage.
This tool is used to connect
the FI diagnostic tool to a bat-
tery.
This tool is needed to remove
and install the valve guide.
This tool is needed to remove
and install the valve assem-
blies.
1-14
SPECIAL TOOLS
Illustration