Yamaha YZ450FN 2022, Owner'S Service Manual, Page: 109 / 366

CHASSIS
3-33
rect the tire position.
EAM30244
CHECKING AND TIGHTENING THE SPOKES
1. Check:
• Spoke
Bend/damage

Replace.
Loose

Tighten.
Tap the spoke with a screwdriver.
TIP
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2. Tighten:
•
Spoke
(with a spoke nipple wrench “1”)
TIP
•
Do not give a half turn (180

) or more for one
tightening.
•
Make sure that tightening after a break-in is
done until the initial looseness in nipples disap-
pears.
• Make sure that tightening is done in stages, not
at a time.
EAM30245
CHECKING THE WHEELS
1. Check:
•
Wheel
Damage/out-of-round

Replace.
WARNING
EWA13260
Never attempt to make any repairs to the
wheel.
EAM30246
CHECKING THE WHEEL BEARINGS
1. Check:
• Wheel bearing
Refer to “CHECKING THE FRONT WHEEL”
on page 4-6 and “CHECKING THE REAR
WHEEL” on page 4-10.
EAM30253
CHECKING THE CHASSIS FASTENERS
Make sure that all nuts, bolts, and screws are
properly tightened.
Refer to “CHASSIS TIGHTENING TORQUES”
on page 2-13.
EAM30248
CHECKING AND LUBRICATING THE
CABLES
The following procedure applies to all of the in-
ner and outer cables.
WARNING
EWA13270
Damaged outer cable may cause the cable to
corrode and interfere with its movement. Re-
place damaged outer cable and inner cables
as soon as possible.
a. Bead stopper tightening nut
b. Tire valve stem
a
b
1
Spoke nipple wrench (6–7)
90890-01521
Spoke nipple wrench (6–7)
YM-01521
Spoke
2.5 N·m (0.25 kgf·m, 1.8 lb·ft)
T
R
.
.