Checking The Wheels; Checking The Wheel Bearings; Checking And Adjusting The Steering Head - Yamaha YZ 2019 Series Owner's Service Manual

TIP
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2. Tighten:
• Spoke
Use a spoke nipple wrench "1" for tightening.
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)
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.
EWA13260
WARNING
Never attempt to make any repairs to the
wheel.
TIP
After replacing a tire or a wheel, always balance
the wheel.
EAM30246

CHECKING THE WHEEL BEARINGS

1. Check:
• Wheel bearing
Refer to "CHECKING THE FRONT WHEEL"
on page 4-4 and "CHECKING THE REAR
WHEEL" on page 4-8.
EAM30247
CHECKING AND ADJUSTING THE
STEERING HEAD
1. Use a maintenance stand to raise the front
wheel off the ground.
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
2. Check:
• Steering head
Grasp the bottom of the front fork legs and
gently rock the front fork.
Blinding/looseness  Adjust the steering
head.
3. Remove:
• Handlebar
Refer to "HANDLEBAR" on page 4-31.
• Upper bracket
Refer to "STEERING HEAD" on page 4-50.
4. Adjust:
• Steering head
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Remove the washer "1".
1
b. After loosening the ring nut "2" with a steering
nut wrench "3", tighten it to the specified
torque.
TIP
• Set the torque wrench at a right angle to the
steering nut wrench.
3-33
CHASSIS