Yamaha YZF-R125 Service Manual: Checking the front fork legs

Yamaha YZF-R125 Service Manual / Chassis / Front fork / Checking the front fork legs

The following procedure applies to both of the front fork legs.

1. Check:

  • Inner tube
  • Outer tube Bends/damage/scratches
    Replace.
WARNING

Do not attempt to straighten a bent inner tube as this may dangerously weaken it.

2. Measure:

  • Spring free length "a" Out of specification Replace.

Checking the front fork legs


3. Check:

  • Damper rod Damage/wear   Replace.


    Obstruction  Blow out all
    of the oil passages with compressed air.

  • Oil flow stopper Damage Replace.

CAUTION:

When disassembling and assembling the front fork leg, do not allow any foreign material to enter the front fork.

    Disassembling the front fork legs
    The following procedure applies to both of the front fork legs. 1. Remove: Rubber cap Clip "1" Front fork cap "2" (with O-ring) Fork spring NOTE: Push the front fork cap in the direc ...

    Assembling the front fork legs
    The following procedure applies to both of the front fork legs. WARNING Make sure the oil levels in both front fork legs are equal. Uneven oil levels can result in poor handling ...

    Other materials:

    Identification numbers
    Record the key identification number, vehicle identification number and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. KEY IDENTIFICATION NUMBER: VEHICLE IDENTIFICATION ...

    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 ...

    Intake air temperature sensor
    1. Check: Intake air temperature sensor resistance Out of specification Replace the throttle body. a. Connect the pocket tester ( × 1k) to the throttle body sensor assembly coupler as shown. Positive tester probe brown/white "1" Negative tester probe gray/black ...

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