Yamaha YZ 2019 Series, Owner'S Service Manual

Page: 122 / 398

CHASSIS
3-34
•
Move the steering to the left and right a couple
of times to check that it moves smoothly.
c. Turn the front fork to the right and left a few
times, and make sure that the steering ro-
tates smoothly. If it does not turn smoothly,
remove the lower bracket and check the up-
per and lower bearings.
Refer to “STEERING HEAD” on page 4-50.
d. Loosen the ring nut fully turn and then tighten
it to specification with a steering nut wrench.
WARNING
EWA13140
Do not overtighten the lower ring nut.
e. Check the steering head for looseness or
binding by turning the front fork all the way in
both directions. If any binding is felt, remove
the lower bracket and check the upper and
lower bearings.
Refer to “STEERING HEAD” on page 4-50.
f. Install the washer “1”.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Install:
• Upper bracket
Refer to “STEERING HEAD” on page 4-50.
• Handlebar
Refer to “HANDLEBAR” on page 4-31.
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.
1. Check:
• Outer cable
Damage

Replace.
2. Check:
•
Cable operation
Rough movement

Lubricate.
TIP
Hold the cable end upright and pour a few drops
of lubricant into the cable sheath or use a suit-
able lubricating device.
EAM30249
LUBRICATING THE LEVERS
1. Lubricate the pivoting points and metal-to-
metal moving parts of the following parts.
• Brake lever
•
Clutch lever
EAM30250
LUBRICATING THE PEDAL
1. Lubricate the pivoting point and metal-to-met-
al moving parts of the pedal.
Steering nut wrench
90890-01403
Exhaust flange nut wrench
YU-A9472
Ring nut (initial tightening torque)
38 N·m (3.8 kgf·m, 28 lb·ft)
Ring nut (final tightening torque)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
3
2
T
R
.
.
T
R
.
.
1
Recommended lubricant
Engine oil or a suitable cable lu-
bricant
Recommended lubricant
Silicone grease
Recommended lubricant
Lithium-soap-based grease
Recommended lubricant
Lithium-soap-based grease