1985-1986 Honda ATC250R Shop Manual, Page 168Get this manual
REAR WHEElDRIVE MECHANISM LOCK NUT WRENCH, 45 mm or equivalent 07916-1870101 Temporarily install the left rear wheel hub and wheelTighten the outer lock nut to the specified torque against the snap ring collar while holding the left rear wheelTORQUE:
80-100 Nm (8.0-10.0 kg-m, 58-72 ft-Ib)
NOTE lThe-in-n-e-r-a-nd outer lock nuts have left-hand
Remove the left rear wheel and wheel hubTighten the inner lock nut against the outer lock nutTORQUE:
120-140 Nm (12.0-14.0 kg-m, 87-101 ft-Ib)
LOCK NUT WRENCH, 56 mm 07916-HA20100 or 07916HA2010A
OUTER LOCK NUT