Yamaha YZF-R125 Owners Manual: Rider seat

To remove the rider seat

  1. Insert the key into the seat lock, and then turn it clockwise.


  1. Seat lock

  2. Open.

  1. Pull the rider seat off.

To install the rider seat

1. Insert the projection on the front of the rider seat into the seat holder as shown.


  1. Projection

  2. Seat holder

  1. Push the rear of the rider seat down to lock it in place.
  2. Turn the key counterclockwise, and then remove it.

TIP
Make sure that the rider seat is properly secured before riding.

    Catalytic converters
    This vehicle is equipped with catalytic converters in the exhaust system. WARNING The exhaust system is hot after operation. To prevent a fire hazard or burns: Do not park the vehicle nea ...

    Sidestand
    The sidestand is located on the left side of the frame. Raise the sidestand or lower it with your foot while holding the vehicle upright. TIP The built-in sidestand switch is part of the ign ...

    Other materials:

    Checking the clutch housing
    1. Check: Clutch housing dogs "1" Damage/pitting/wear  Deburr the clutch housing dogs or replace the clutch housing. NOTE: Pitting on the clutch housing dogs will cause erratic clutch operation. 2. Check: Bearing Damage/wear Replace the bearing and clutch housin ...

    Checking the speed sensor
    1. Check: Speed sensor output voltage Out of specification → Replace. a. Connect the pocket tester (DC 20 V) to the speed sensor coupler (wire harness end) as shown. Positive tester probe gray "1" Negative tester probe gray/black "2" b. Set the main switch to "ON". c. ...

    Checking the valve springs
    The following procedure applies to all of the valve springs. 1. Measure: Valve spring free length "a" Out of specification Replace the valve spring. 2. Measure: Compressed valve spring force "a" Out of specification Replace the valve spring. b. Installed length 3. ...

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