Yamaha YZF-R125 Service Manual: Installing the relay arm

1. Lubricate:

  • Spacers
  • Bearings
  • Oil seals
  • Bolts (unthreaded shaft portion only)

2. Install:

  • Bearing "1" (to the relay arm)
  • Oil seal "2" (to the relay arm)

Installing the relay arm


3. Rear shock absorber assembly

4. Relay arm

5. Connecting arm

A. Left side

B. Right side

    Checking the connecting arms and relay arm
    1. Check: Connecting arms Relay arm Damage/wear Replace. 2. Check: Bearings Oil seals Damage/pitting Replace. 3. Check: Spacers Damage/scratches Replace. ...

    Installing the rear shock absorber assembly
    1. Install: Rear shock absorber assembly Relay arm "1" NOTE: Install the relay arm as shown in the illustration. 2. Tighten: Rear shock absorber assembly upper nut Relay arm nu ...

    Other materials:

    Checking the crankshaft position sensor
    1. Disconnect: Crankshaft position sensor coupler (from the wire harness) 2. Check: Crankshaft position sensor resistance Out of specification  Replace the crankshaft position sensor/stator assembly. a. Connect the pocket tester ( × 100) to the crankshaft position sensor c ...

    Adjusting the brake pedal free play
    Adjusting the brake pedal free play Brake pedal free play The brake pedal free play should measure 3.5-4.5 mm (0.14-0.18 in) as shown. Periodically check the brake pedal free play and, if necessary, have a Yamaha dealer adjust it. WARNING An incorrect brake pedal free play in ...

    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: Balancing weight(s) 2. Find: Front wheel's heavy spot NOTE: Place the front wheel on a suitab ...

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