Yamaha TT-R90 Manuel D'atelier Du Proprietaire page 268

CDI MAGNETO AND STARTER CLUTCH (TT-R90E)
REMOVAL POINTS
Rotor
1. Remove:
Rotor nut 1
G
Washer 2
G
NOTE:
Loosen the rotor nut while holding the rotor
G
with sheave holder 3.
Do not allow the sheave holder to touch the
G
projection on the rotor.
Sheave holder:
YS-1880-A/90890-01701
2. Remove:
Rotor 1
G
Woodruff key
G
NOTE:
Use the flywheel puller 2.
G
Center the flywheel puller over the rotor.
G
Make sure after installing the holding bolts
that the clearance between the flywheel
puller and the rotor is the same everywhere.
If necessary, one holding bolt may be turned
out slightly to adjust the flywheel puller's
position.
CAUTION:
Cover the crankshaft end with the box
wrench for protection.
Flywheel puller:
YU-33270-B/90890-01362
4 - 42
ENG