Yamaha 2004 YXR660 Service Manual page 23

Tool No.
Ring nut wrench
90890-01430
YM-38404
This tool is needed to removing and
installing the middle driven shaft bearing
retainer.
Gear lash measurement tool
90890-01467
YM-01467
This tool is used to measure the gear
lash.
Ball joint remover/installer set
Ball joint adapter set
90890-01474
YM-01474
These tools are used to removing or
installing the ball joints.
Sheave holder
Primary sheave holder
90890-01701
YS-01880-A
This tool is needed to hold the primary
sheave when removing or installing the
sheave bolts.
Compression gauge
Set
Adapter (compression gauge)
90890-03081
YU-33223
Adapter
90890-04082
These tools are needed to measure
YU-33223-4
engine compression.
Pocket tester
90890-03112
YU-03112-C
This instrument is needed for checking
the electrical system.
Engine tachometer
90890-03113
This tool is needed for observing engine
rpm.
Timing light
Battery powered timing light
90890-03141
YM-33277-A
This tool is necessary for checking igni-
tion timing.
SPECIAL TOOLS
Tool name/Function
1 - 10
GEN
INFO
Illustration