Lubricating The Steering Head; Checking The Chassis Fasteners; Lubricating The Brake Lever; Lubricating The Clutch Lever - Yamaha MTN850-A 2017 Service Manual

Steering nut wrench
90890-01403
Exhaust flange nut wrench
YU-A9472
Lower ring nut (initial tightening
torque)
52 N·m (5.2 kgf·m, 38 lb·ft)
c. Loosen the lower ring nut "6" completely,
then tighten it to specification.
EWA13140
WARNING
Do not overtighten the lower ring nut.
Lower ring nut (final tightening
torque)
18 N·m (1.8 kgf·m, 13 lb·ft)
d. 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 4-71.
e. Install the rubber washer "7".
f. Install the upper ring nut "8".
g. Finger tighten the upper ring nut, then align
the slots of both ring nuts. If necessary, hold
the lower ring nut and tighten the upper ring
nut until their slots are aligned.
h. Install the lock washer "9".
TIP
Make sure the lock washer tabs "a" sit correctly
in the ring nut slots "b".
PERIODIC MAINTENANCE
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5. Install:
• Upper bracket
Refer to "HANDLEBAR" on page 4-58.
EAS30646

LUBRICATING THE STEERING HEAD

1. Lubricate:
• Upper bearing
• Lower bearing
• Bearing race
Recommended lubricant
Lithium-soap-based grease
EAS31186

CHECKING THE CHASSIS FASTENERS

Make sure that all nuts, bolts, and screws are
properly tightened.
Refer to "CHASSIS TIGHTENING TORQUES"
on page 2-13.
EAS30804

LUBRICATING THE BRAKE LEVER

Lubricate the pivoting point and metal-to-metal
moving parts of the lever.
Recommended lubricant
Silicone grease
EAS30805

LUBRICATING THE CLUTCH LEVER

Lubricate the pivoting point and metal-to-metal
moving parts of the lever.
Recommended lubricant
Lithium-soap-based grease
EAS30649

LUBRICATING THE PEDAL

Lubricate the pivoting point and metal-to-metal
moving parts of the pedal.
Recommended lubricant
Lithium-soap-based grease
3-20