Maintenance - Major Service

16. Check the steering head bearings

The steering head should be checked for play with the motorcycle on the center stand and the front wheel supported clear of the ground. Grasp the fork lower legs at the bottom and alternately push and pull, feeling for any play in the bearings. The forks should fail easily to either side, if moved slightly off centre.

On 75 models the Fluidbloc retaining screws must first be removed. If adjustment proves to be necessary, remove the handlebar cover and the fuel tank. On models fitted with frame-mounted fairings, remove the fairing inner panels if they prevent access to the fork yoke clamp bolts and to the steering head area. On all models, slacken fully the bottom yoke clamp bolts; the fork stanchions must be free to move up or down slightly in the bottom yoke.

On all 100 models and early 75 models slacken the steering stem top bolt and rotate the knurled, circular adjusting nut under the fork top yoke until the setting is correct, then tighten the top bolt, to its specified torque wrench setting if possible, to secure the nut. Tighten the bottom yoke pinch bolts and refit all disturbed components.

On later 75 models slacken the adjuster sleeve locknut and adjuster sleeve, then rotate the knurled, circular adjusting nut under the fork top yoke until the setting is correct, then tighten the adjuster sleeve to its specified torque wrench setting, followed by tightening the locknut to its torque wrench setting. Tighten the bottom yoke pinch bolts and refit all disturbed components.

On all models, check that all fasteners are tightened securely to their specified torque wrench settings, if possible, then check that the forks move smoothly from lock to lock with no traces of stiffness or of free play.