Yamaha XVS6501997 Service Manual page 156

AC MAGNETO AND STARTER CLUTCH
2. Tighten:
S Bolt (rotor) 1
S Bolts (starter clutch) 2
NOTE:
Tighten the rotor bolt 1 and starter clutch bolts
2 while holding the magneto rotor with a
sheave holder 3 .
Sheave holder:
90890-01701
4-52
ENG
80 Nm (8.0 mSkg)
20 Nm (2.0 mSkg)