Yamaha XZ550RJ 1982 Owner's Manual page 227

WARNING:
Always use a new cotter pin on the axle
nut.
- 215-
Axle nut torque:
110 Nm (11 m ·kg, 80 ft-lb)
5. Before tightening the pinch bolt, stroke
the front forks several times to make
sure of proper fork operation.
With the axle pinch bolt loose, work the
right fork leg back and forth until the
proper clearance between the disc and
caliper bracket on the front is obtained.