Yamaha YZF-R125 Service Manual: Checking the rear wheel

Yamaha YZF-R125 Service Manual / Chassis / Rear wheel / Checking the rear wheel

1. Check:

  • Rear wheel axle
  • Rear wheel
  • Wheel bearings
  • Oil seals Refer to "CHECKING THE FRONT WHEEL" on page 4-8.

2. Check:

  • Tire
  • Rear wheel Damage/wear → Replace.

Refer to "CHECKING THE TIRES" on page 3-23 and "CHECKING THE WHEELS" on page 3-25.

3. Measure:

  • Radial wheel runout
  • Lateral wheel runout Refer to "CHECKING THE FRONT WHEEL" on page 4-8.

Checking the rear brake caliper bracket

1. Check:

  • Rear brake caliper bracket Cracks/damage → Replace.

Checking the rear wheel drive hub

1. Check:

  • Rear wheel drive hub Cracks/damage → Replace.
  • Rear wheel drive hub dampers Damage/wear → Replace.
    Removing the rear wheel (disc)
    1. Stand the vehicle on a level surface. WARNINGSecurely support the vehicle so that there is no danger of it falling over. 2. Elevate: Rear wheel NOTE: Place the vehicle ...

    Checking and replacing the rear wheel sprocket
    1. Check: Rear wheel sprocket More than 1/4 tooth "a" wear Replace the rear wheel sprocket. Bent teeth Replace the rear wheel sprocket. b. Correct 1. Drive chain roller 2. ...

    Other materials:

    Checking the shift forks
    The following procedure applies to all of the shift forks. 1. Check: Shift fork cam follower "1" Shift fork pawl "2" Bends/damage/scoring/wear Replace the shift fork. 2. Check: Shift fork guide bar Roll the shift fork guide bar on a flat surface. Bends  Replace. ...

    Checking the starter motor
    1. Check: Commutator Dirt Clean with 600 grit sandpaper. 2. Measure: Commutator diameter "a" Out of specification Replace the starter motor. 3. Measure: Mica undercut "a" Out of specification Scrape the mica to the proper measurement with a hacksaw blade ...

    Adjusting the drive chain slack
    NOTE: The drive chain slack must be checked at the tightest point on the chain. CAUTION:A drive chain that is too tight will overload the engine and other vital parts, and one that is too loose can skip and damage the swingarm or cause an accident. Therefore, keep the drive ...

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