Lubricating The Levers; Lubricating The Pedal; Lubricating The Drive Chain; Lubricating The Sidestand - Yamaha YZ450FX 2019 Owner's Service Manual

of times to check that it moves smoothly.
3
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)
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 4-51.
d. Loosen the ring nut fully turn and then tighten
it to specification with a steering nut wrench.
EWA13140
WARNING
Do not overtighten the lower ring nut.
Ring nut (final tightening torque)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
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 4-51.
f. Install the washer "1".
1
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2
3-34
5. Install:
• Upper bracket
Refer to "STEERING HEAD" on page 4-51.
• Handlebar
Refer to "HANDLEBAR" on page 4-33.
EAM30249

LUBRICATING THE LEVERS

1. Lubricate the pivoting points and metal-to-
metal moving parts of the following parts.
• Brake lever
Recommended lubricant
Silicone grease
• Clutch lever
Recommended lubricant
Lithium-soap-based grease
EAM30250

LUBRICATING THE PEDAL

1. Lubricate the pivoting point and metal-to-met-
al moving parts of the pedal.
Recommended lubricant
Lithium-soap-based grease
EAM30251

LUBRICATING THE DRIVE CHAIN

The drive chain consists of many interacting
parts. If the drive chain is not maintained proper-
ly, it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
vehicle is used in dusty areas.
This vehicle has a drive chain with small rubber
O-rings between each side plate. Steam clean-
ing, high-pressure washing, certain solvents,
and the use of a coarse brush can damage
these O-rings. Therefore, use only kerosene to
clean the drive chain. Wipe the drive chain dry
and thoroughly lubricate it with engine oil or
chain lubricant that is suitable for O-ring chains.
Do not use any other lubricants on the drive
chain since they may contain solvents that could
damage the O-rings.
Recommended lubricant
Chain lubricant suitable for O-
ring chains
EAM30252

LUBRICATING THE SIDESTAND

Lubricate the pivoting point and metal-to-metal
moving parts of the sidestand.
CHASSIS