Yamaha XF50W Service Manual page 16

Tool NO.
90890-01384 Oil seal guide
YM-33299
This tool is used for protecting the oil seal
lip when installing the secondary sliding
sheave.
90890-01403 Steering nut wrench
YU-A9472
This tool is used to loosen and tighten the
steering ring nut.
90890-01444 Steering nut wrench(45mm)
YM-A9409-7
This tool is used to loosen and tighten the
upper bearing inner race.
90890-01468 Flywheel puller set
YU-33270-B
This tool is used to remove the AC magneto
rotor.
90890-01493 Socket wrench(39mm)
This tool is used when removing or install-
ing the secondary sheave nut.
90890-01701 Sheave holder
YS-01880-A
This tool is used for holding the secondary
sheave.
90890-03079 Thickness gauge
YM-34483
This tool is used to measure the valve
cleanance.
90890-03081 Compression gauge
YU-33223
This tool is used to measure the engine com-
pression.
90890-03112 Pocket tester
YU-03112-C
This instrument is invaluable for checking
the electrical system.
90890-03174 Digital circuit tester
90890-03141
This instrument is invaluable for checking
YU-03141
the electrical system.
Tool name / Function
1-9
SPECIAL TOOLS
Illustration