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:

    Installing the swingarm
    1. Lubricate: Bearings Spacers Dust covers Pivot shaft 2. Install: Bearings "1" 2. Swingarm A. Left side B. Right side 3. Install: Swingarm adjusting collar "1" Swingarm "2" Pivot shaft Pivot shaft nut "3" a. Install, and then fully turn in the swingarm adju ...

    Installing the front brake master cylinder
    1. Install: Brake master cylinder "1" Brake master cylinder holder "2" NOTE: Install the brake master cylinder holder with the arrow mark "a" pointing forward. Align the end of the brake master cylinder holder with the punch mark "b" on the handlebar. First, tighten the front bo ...

    Checking the rear brake caliper
    1. Check: Brake caliper piston "1" Rust/scratches/wear Replace the brake caliper piston. Brake caliper cylinder "2" Scratches/wear Replace the brake caliper assembly. Brake caliper body "3" Cracks/damage   Replace the brake caliper assembly. Brake fluid deli ...

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