Yamaha YZF-R125 Service Manual: Installing the front wheel (disc)

Yamaha YZF-R125 Service Manual / Chassis / Front wheel / Installing the front wheel (disc)

1. Install:

  • Front brake disc

NOTE:

  • Be sure to install the front brake disc with the arrow mark "a" on the disc facing out.
  • Tighten the brake disc bolts in stages and in a crisscross pattern.

Installing the front wheel (disc)


2. Check:

  • Front brake disc Refer to "CHECKING THE FRONT BRAKE DISC" on page 4-21.

3. Lubricate:

  • Front wheel axle
  • Oil seal lip
  • Speed sensor lip

4. Install:

  • Speed sensor

NOTE:

Make sure the speed sensor and the wheel hub are installed with the two projections meshed into the two slots respectively.

Installing the front wheel (disc)


5. Install:

  • Front wheel

NOTE:

Make sure the stopper "a" in the speed sensor fits over the slot "b" on the outer tube.

Installing the front wheel (disc)


6. Tighten:

  • Front wheel axle
  • Front wheel axle pinch bolt

WARNING

Make sure the brake hose is routed properly.

CAUTION:

Before tightening the wheel axle, push down hard on the handlebar(s) several times and check if the front fork rebounds smoothly.

a. Insert the front wheel axle from the right side and tighten it from the left side to 59 Nm (5.9 m.kg, 43 ft.lb) without performing temporary tightening.

b. Tighten the front wheel axle pinch bolt to 14 Nm (1.4 m.kg, 10 ft.lb) without performing temporary tightening.

c. Check that the right end of the front wheel axle is flush with the front fork. If necessary, manually push the front wheel axle or lightly tap it with a soft hammer until its end is flush with the front fork. However, if the surface of the front wheel axle end is not parallel to the surface of the front fork, align a point on the outer edge of the axle with the fork, making sure that the axle does not protrude past the fork.

    Adjusting the front wheel static balance
    NOTE: After replacing the tire, wheel or both, the front wheel static balance should be adjusted. Adjust the front wheel static balance with the brake discs installed. 1. Remove: Bala ...

    Rear wheel
    ...

    Other materials:

    Assembling the front brake caliper
    WARNING Before installation, all internal brake components should be cleaned and lubricated with clean or new brake fluid. Never use solvents on internal brake components as they will cause the brake caliper dust seals and piston seals to swell and distort. ...

    Setting the normal mode
    NOTE: The engine speed, coolant temperature, and fault code, if detected, can be displayed on the LCD of the FI diagnostic tool when the tool is connected to the vehicle and is set to the normal mode. 1. Set the main switch to "OFF" and the engine stop switch to "". 2. Disconnect the self- ...

    Throttle position sensor
    1. Check: Throttle position sensor a. Connect the digital circuit tester to the terminals of the throttle body sensor assembly coupler as shown. Positive tester probe → gray/red terminal "1" Negative tester probe → gray/black terminal "2" b. Measure the throttle pos ...

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