Yamaha YZ450FA 2011 Owner's Service Manual page 103

• STANDARD POSITION:
This is the position which is back by the spe-
cific number of turns from the fully turned-in
position. (Which align the punch mark "a" on
the adjuster with the punch mark "b" on the
adjuster body.)
Standard position:
About 1-1/4 turns out
* About 1-1/2 turns out
* Except for USA and CDN
Do not force the adjuster past the minimum
or maximum extent of adjustment. The ad-
juster may be damaged.
CHECKING THE TIRE PRESSURE
1. Measure:
• Tire pressure
Out of specification → Adjust.
Standard tire pressure:
100 kPa (1.0 kgf/cm
• Check the tire while it is cold.
• Loose bead stoppers allow the tire to slip off
its position on the rim when the tire pressure
is low.
• A tilted tire valve stem indicates that the tire
slips off its position on the rim.
• If the tire valve stem is found tilted, the tire is
considered to be slipping off its position. Cor-
rect the tire position.
CHECKING AND TIGHTENING THE
SPOKES
The following procedure applies to all of the
spokes.
1. Check:
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2
, 15 psi)
2. Tighten:
Be sure to retighten these spokes before and
after break-in.
3-32
• Spokes
Bend/damage → Replace.
Loose spoke → Retighten.
Tap the spokes with a screwdriver.
• Spokes
(with a spoke nipple wrench "1")
Spoke nipple wrench:
YM-01521/90980-01521
CHASSIS