Yamaha tmax XP500A, Service Manual

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CHK
ADJ
CHECKING AND ADJUSTING THE STEERING HEAD
7. Install:
• upper bracket
1
• steering stem nut
2
8. Tighten:
• upper bracket pinch bolt
• steering stem nut
T
R
.
.
30 Nm (3.0 m · kg, 22 ft · lb)
T
R
.
.
110 Nm (11.0 m · kg, 80 ft · lb)
9. Measure:
• steering head tension
(with the scooter still on the stand)
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NOTE:
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
locking tie.
d. Hold the spring gauge at a 45° angle from
the handlebar, pull the spring gauge, and
record the measurement when the handle-
bar starts to turn.
e. Repeat the above procedure on the oppo-
site 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.
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Steering head tension
1.96 ~ 4.90 N
(200 ~ 500 gf, 7.06 ~ 17.65 oz)