Yamaha YZF-R6 99, Service Manual

Page: 109 / 400

3-49
CHECKING AND ADJUSTING THE STEERING HEAD
CHK
ADJ
WARNING
NOTE:
115 Nm (11.5 m kg)
13 Nm (1.3 m kg)
13 Nm (1.3 m kg)
23 Nm (2.3 m kg)
NOTE:
c. Loosen the lower ring nut completely, then
tighten it to specification.
Do not overtighten the lower ring nut.
Lower ring nut (final tightening
torque)
9 Nm (0.9 m kg)
d. Check the steering head for looseness or
binding by turning the front fork all the way in
both directions. If any binding is felt, remove
the lower bracket and check the upper and
lower bearings.
Refer to “STEERING HEAD” in chapter 7.
e. Install the washer 3 .
f. Install the upper ring nut 2 .
g. Finger tighten the upper ring nut 2 , then
align the slots of both ring nuts.
If necessary, hold the lower ring nut and
tighten the upper ring nut until their slots are
aligned.
h. Install the lock washer 1 .
Make sure that the lock washer tabs
a
sit cor-
rectly in the ring nut slots b .
8. Install:
steering stem nut
upper bracket bolt
handlebar pinch bolt
upper bracket pinch bolt
9. Measure:
steering head tension
(with the motorcycle still on the stand)
Make sure that all of the cables and wires are
properly routed.
a. Point the front wheel straight ahead.
b. Install a plastic locking tie
1 loosely around
the end of the handlebar as shown.
c. Hook a spring gauge 2 onto the plastic lock-
ing tie.