SPECIAL TOOLS
1-17
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
This tool is used to measure
the voltage, current, and re-
sistance of electrical compo-
nents.
Timing light
90890-03141
YU-03141
This tool is used to measure
the ignition timing.
Pressure gauge
90890-03153
YU-03153
This tool is used to measure
the fuel pressure.
Yamaha diagnostic tool
90890-03215
This tool is used to check er-
ror codes or carry out self-di-
agnosis.
Fuel pressure adapter
90890-03186
YM-03186
This tool is used to mount the
pressure gauge.
Test harness S-pressure
sensor (3P)
90890-03207
YU-03207
This tool is used to check the
throttle position sensor input
voltage.
FI diagnostic tool sub-lead
90890-03212
YU-03212
This tool is used to connect
the Yamaha diagnostic tool
to a battery.
Spacer (crankshaft installer)
90890-04081
Pot spacer
YM-91044
This tool is used to install the
crankshaft.
Tool name/Part number How to use Illustration