Yamaha YZF-R125 Owners Manual: Replacing an auxiliary light bulb

This model is equipped with two auxiliary lights. If an auxiliary light bulb burns out, replace it as follows.

  1. Remove the socket (together with the bulb) by pulling it out.


  1. Auxiliary light bulb

  1. Remove the burnt out bulb by pulling it out.
  2. Insert a new bulb into the socket.
  3. Install the socket (together with the bulb) by pushing it in.
    Replacing the license plate light bulb
    Remove the socket (together with the bulb) by pulling it out. License plate light bulb Remove the burnt-out bulb by pulling it out. Insert a new bulb into the socket. ...

    Supporting the motorcycle
    Since this model is not equipped with a centerstand, follow these precautions when removing the front and rear wheel or performing other maintenance requiring the motorcycle to stand upright. ...

    Other materials:

    Checking the front brake hose
    1. Check: Brake hose "1" Cracks/damage/wear  Replace. 2. Check: Brake hose holder "2" Loose connection Tighten the holder bolt. 3. Hold the vehicle upright and apply the front brake several times. 4. Check: Brake hose Brake fluid leakage Replace the da ...

    Faulty clutch
    Clutch slips 1. Clutch Improperly assembled clutch Improperly adjusted clutch cable Loose or fatigued clutch spring Worn friction plate Worn clutch plate 2. Engine oil Incorrect oil level Incorrect oil viscosity (low) Deteriorated oil Clutch drags 1. Clutch Unevenly t ...

    Removing the valves
    The following procedure applies to all of the valves and related components. NOTE: Before removing the internal parts of the cylinder head (e.g., valves, valve springs, valve seats), make sure the valves properly seal. 1. Check: Valve sealing Leakage at the valve seat Check the valve ...

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