1985-1986 Honda ATC250R Shop Manual, Page 97Get this manual
CLUTCHGEARSHIFT LINKAGEKICK STARTER
LOCK NUT WRENCH17 27 mm 07716-0020300 OR EQUIVALENT IN U.S.AEXTENSION BAR 07716-0020500
Install the clutch center nut and tighten to the specified torque
TORQUE: 55-65 Nm (5.5-6.5 kg-m, 40-47 ft-Ib)
Bend the tabs of the lock washer up against the clutch center nut
CLUTC CE TER HOLDER 07724-0050000 OR EQUIVALENTAVAILABLE IN U.S.AInstall the seven discs and six clutch plates