Yamaha YZF-R6 99, Service Manual

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3-50
CHECKING AND ADJUSTING THE STEERING HEAD/
CHECKING THE FRONT FORK
CHK
ADJ
WARNING
d. Hold the spring gauge at a 90
_
angle from
the handlebar, pull the spring gauge, and re-
cord the measurement when the handlebar
starts to turn.
Steering head tension
200 500 g
e. Repeat the above procedure on the opposite
handlebar.
f. If the steering head tension is out of specifi-
cation (both handlebars should be within
specification), remove the upper bracket and
loosen or tighten the upper ring nut.
g. Reinstall the upper bracket and measure the
steering head tension again as described
above.
h. Repeat the above procedure until the steer-
ing head tension is within specification.
i. Grasp the bottom of the front fork legs and
gently rock the front fork.
Looseness or binding
Adjust the steering
head.
EB304141
CHECKING THE FRONT FORK
1. Stand the motorcycle on a level surface.
Securely support the motorcycle so that
there is no danger of it falling over.
2. Check:
S
inner tube 1
Damage / scratches Replace.
S
oil seal 2
Oil leakage Replace.
3. Hold the motorcycle upright and apply the
front brake.
4. Check:
S
front fork operation
Push down hard on the handlebars several
times and check if the front fork rebounds
smoothly.
Rough movement
Repair.
Refer to “FRONT FORK” in chapter 7.