Maintenance Of The Rear Wheel Sensor And Sensor Rotor; Adjusting The Rear Wheel Static Balance; Installing The Rear Wheel (Rear Brake Disc) - Yamaha MTN850-A 2017 Service Manual

• Oil seal
New
Refer to "ASSEMBLING THE FRONT
WHEEL" on page 4-11.
EAS31156
MAINTENANCE OF THE REAR WHEEL
SENSOR AND SENSOR ROTOR
ECA21060
NOTICE
• Handle the ABS components with care
since they have been accurately adjusted.
Keep them away from dirt and do not sub-
ject them to shocks.
• The rear wheel sensor cannot be disassem-
bled. Do not attempt to disassemble it. If
faulty, replace with a new one.
• Keep any type of magnets (including mag-
netic pick-up tools, magnetic screwdrivers,
etc.) away from the rear wheel sensor or
rear wheel sensor rotor.
• Do not drop or shock the wheel sensor or
the wheel sensor rotor.
1. Check:
• Rear wheel sensor
Refer to "MAINTENANCE OF THE FRONT
WHEEL SENSOR AND SENSOR ROTOR"
on page 4-12.
2. Check:
• Rear wheel sensor rotor
Refer to "MAINTENANCE OF THE FRONT
WHEEL SENSOR AND SENSOR ROTOR"
on page 4-12.
3. Measure:
• Wheel sensor rotor runout
Refer to "MAINTENANCE OF THE FRONT
WHEEL SENSOR AND SENSOR ROTOR"
on page 4-12.
EAS30164
ADJUSTING THE REAR WHEEL STATIC
BALANCE
TIP
• After replacing the tire, wheel or both, the rear
wheel static balance should be adjusted.
• Adjust the rear wheel static balance with the
brake disc and rear wheel drive hub installed.
1. Adjust:
• Rear wheel static balance
Refer to "ADJUSTING THE FRONT WHEEL
STATIC BALANCE" on page 4-13.
EAS31157
INSTALLING THE REAR WHEEL (REAR
BRAKE DISC)
1. Install:
• Rear brake disc
Rear brake disc bolt
30 N·m (3.0 kgf·m, 22 lb·ft)
LOCTITE®
ECA19150
NOTICE
Replace the brake disc bolts with new ones.
TIP
Tighten the brake disc bolts in stages and in a
crisscross pattern.
2. Check:
• Rear brake disc
Refer to "CHECKING THE REAR BRAKE
DISC" on page 4-43.
3. Lubricate:
• Oil seal lips
Recommended lubricant
Lithium-soap-based grease
4. Install:
• Brake caliper bracket
• Rear wheel
• Adjusting block
• Wheel axle
• Chain puller assembly
• Washer
• Wheel axle nut
TIP
• Do not install the brake caliper.
• Align the projection "a" in the swingarm with the
slot "b" of the brake caliper bracket.
• Install the adjusting block so that projection "c"
faces to the front of the vehicle.
4-22
REAR WHEEL