Suspension and Steering

Front fork oil change

WARNING:
Securely support the motorcycle so there is no danger of it falling over.

1. Raise the motorcycle or remove the front wheel so that there is no weight on the front end of the motorcycle. Remove the handlebar if necessary.

2.    Remove the rubber cap from the top of each fork.

3.    The spring seat and fork spring are retained by a stopper ring (spring wire circlip). it is necessary to depress the spring seat and fork spring to remove the stopper ring. Remove the stopper ring by carefully prying out one end with a small screwdriver,

4. Place an open container under each drain hole. Remove the drain screw from each outer tube.

WARNING:
Do not allow oil to contact the disc brake components. If any oil should contact the brake components it must be removed before the motorcycle is operated. Oil will cause diminished braking capacity and will damage the rubber components of the brake assembly.

1. Drain screw

5.    When most of the oil has drained, slowly raise and lower the outer tubes to pump out the remaining oil.

6.    Inspect the drain screw gasket. Replace if damaged. Reinstall the drain screw.

7.    Pour the specified amount of oil into the fork inner tube.

Front fork oil (each fork):

230 cc (7.78 oz) Recommended oil:

Yamaha Fork Oil 10 wt or equivalent

8.    After filling, slowly pump the forks up and down to distribute the oil.

9.    Inspect the "O-ring" on the spring seat. Replace "O-ring" if damaged.

10. Reinstall the spring seat, stopper ring and rubber cap.

CAUTION:
Always use a new stopper ring (spring wire circlip).

F. Rear shock absorber

If the spring seat is raised, the spring becomes stiffer and if lowered, it becomes softer.

Standard position................A

A. position.................Softest

E. position................ Stiffest

Steering head adjustment

The steering assembly should be checked periodically for looseness.

1.    Raise the front end of the motorcycle so that there is no weight on the front wheel.

2.    Grasp the bottom of the forks and gently rock the fork assembly backward and forward, checking for looseness in the steering assembly bearings.

3.    If there is looseness in the steering head, loosen the steering stem and front fork pinch bolts and steering fitting bolt.

4.    Use a steering nut wrench to loosen steering fitting nut.

5.    Tighten the steering fitting nut until the steering head is tight, but does not bind when forks are turned.

6.    Retighten the steering fitting nut, steering fitting bolt and steering stem and front fork pinch bolts, in that order.

7.    Recheck steering adjustment to make sure there is no binding when the forks are moved from lock to lock. If necessary, repeat adjustment procedure.