Home mechanic (basic tools) · Time: 20 to 45 min (estimate) (estimate)
Footpegs carry your weight and the brake pedal stops the rear wheel. A stiff brake pedal that does not return can keep the brake dragging and the brake light on. A loose peg can twist under your foot. This job cleans, greases and tightens pegs and the brake pedal pivot, and checks for bends and cracks.
Safety
- After any brake pedal work, the rear brake must work and the brake light must go off when you release the pedal.
- Do not straighten a bent brake pedal or gear lever: fit a new one. Bent metal can crack and snap later.
You need
- Spanners, a torque wrench, grease, new split pins.
- Bolt values for your bike. K-Light 125: footrest bolt M10 × 1.25: 45 to 50 N·m; pedal bolt M8 × 25: 22 to 29 N·m; M6 × 25 bolts: 10 to 12 N·m. Identify each bolt by size before using a value.
Steps: footpegs
- Try to twist each rider and passenger peg. Movement means a loose mounting bolt.
- Folding pegs: they should fold up and spring back down. Check the hinge pin and its split pin or clip. Grease the pin; fit a new split pin.
- Check the rubbers are in place and the peg is not bent or cracked at the mounting.
- Tighten mounting bolts to the bike's value.
Steps: brake pedal
- Press the pedal and let go. It must return fully and quickly against its stop.
- Disconnect the return spring and the brake rod or master cylinder pushrod (note the pin and split pin).
- Remove the pivot bolt. Clean the bolt and the pedal bore. Look for wear (an oval hole).
- Grease and refit. Fit the spring and the rod with a new split pin.
- Set pedal height and free play: Adjust the rear brake pedal or Adjust a drum brake. K-Light 125 rear pedal free play: 20 to 30 mm.
- Check the rear brake light switch: light on with a light press, off when released (Test and adjust the brake light switches).
Steps: gear lever and kickstart lever
- Gear lever: check the clamp bolt on the shaft and the linkage joints. See Check the gear lever and shift linkage.
- Kickstart lever: it should fold and return. Internal faults: Check the kickstart mechanism.
Check your work
- Pegs tight and folding correctly. Pedal returns fully, brake works, light goes off.
If it did not fix the problem
- Pedal still travels too far: Rear brake pedal travels too far.
- Cracked bracket: Crack in the frame or a bracket.
Reference values (K-Light 125)
| Item | Value | Source |
|---|---|---|
| Footrest bolt M10 × 1.25 × 20 | 45 to 50 N·m | K-Light 125 manual, PDF p. 190 |
| Pedal bolt M8 × 25 | 22 to 29 N·m | K-Light 125 manual, PDF p. 190 |
| Bolts M6 × 25 | 10 to 12 N·m | K-Light 125 manual, PDF p. 190 |
| Rear brake pedal free play | 20 to 30 mm | K-Light 125 manual, PDF p. 62 |
