Suzuki RM-Z250 Owner's Manual page 120

4-40 DISASSEMBLY AND ASSEMBLY
• Fit the clutch sleeve hub 5, new lock washer 6 and clutch
sleeve hub nut 7.
NOTE:
Replace the lock washer 6 with a new one.
• Tighten the clutch sleeve hub nut 7 with the special tool to
the specified torque.
 09920-53740: Clutch sleeve hub holder
09920-31020: Extension handle
 Clutch sleeve hub nut: 90 N·m (9.0 kgf-m, 65.0 lbf-ft)
• Make sure the clutch sleeve hub for smooth movement.
• Bend the lock washer to secure the nut.