Yamaha YZ450FA Automobile User Manual


 
3-32
CHASSIS
• 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.)
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.
• 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:
•Spokes
Bend/damage Replace.
Loose spoke Retighten.
Tap the spokes with a screwdriver.
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2. Tighten:
•Spokes
(with a spoke nipple wrench "1")
Be sure to retighten these spokes before and
after break-in.
Standard position:
About 1-1/4 turns out
* About 1-1/2 turns out
* Except for USA and CDN
Standard tire pressure:
100 kPa (1.0 kgf/cm
2
, 15 psi)
Spoke nipple wrench:
YM-01521/90980-01521