Brake Light Switch Adjustment; Clutch Adjustment - Yamaha YBR 125K Owner's Manual

Brake light switch adjustment

1. Brake light switch
The rear brake light switch is activated by the brake pedal
and is properly adjusted when the brake light comes on just
before braking takes effect. To adjust the rear brake light
switch, hold the switchbody so it does not rotate while turning
the adjusting nut.
Turn the adjusting nut in direction a to make the brake
light come on earlier.
Turn the adjusting nut in direction b to make the brake
light come on later.

Clutch adjustment

2. Adjusting nut 1. Lock nut
The clutch lever free play should be adjusted to 10~15 mm
(0.4 ~0.6 in) at the clutch lever end. If the free play is
incorrect, adjust as follows.
1. Loosen the lock nut at the handlebar.
2. Turn the adjuster in or out until proper lever free play is
obtained.
3. Tighten the lock nut.
4. If the free play is still incorrect, make an adjustment at
the crankcase side.
NOTE:
If proper adjustment cannot be obtained or the clutch does
not work correctly, ask a Yamaha dealer to inspect the
internal clutch mechanism.
6-18
2. Adjuster a. 10~15 mm (0.4 ~0.5 in)