Yamaha 2004 YP400, Service Manual, Page: 120 / 417

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CHK
ADJ
CHECKING AND ADJUSTING THE STEERING HEAD
3. Remove:
• lower handlebar holder
Refer to “STEERING HEAD” in chapter 4.
4. Adjust:
• steering head
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Remove the upper steering ring nut
1
, the
lock washer
2
, the center steering ring nut
3
and the rubber washer.
b. Loosen the lower steering ring nut
4
and
then tighten it to specification with the steer-
ing nut wrench
5
.
NOTE:
_
Set a torque wrench at a right angle to the
steering nut wrench.
c. Loosen the lower steering ring nut
4
1/4
turn, and then tighten it to the specified
torque with a torque wrench and the steer-
ing nut wrench.
WARNING
_
Do not overtighten the lower steering ring
nut.
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 4.
e. Install the rubber washer.
f. Install the center steering ring nut.
Steering nut wrench
90890-01403, YU-A9472
T
R
.
.
Lower steering ring nut (initial
tightening torque)
36 Nm (3.6 m · kg, 25 ft · lb)
T
R
.
.
Lower steering ring nut (final
tightening torque)
24 Nm (2.4 m · kg, 17 ft · lb)