Yamaha YZF-R125 Service Manual: Checking the front brake pads
The following procedure applies to all of the brake pads.
1. Operate the brake.
2. Check:
- Front brake pad
Wear indicator grooves "a" have almost disappeared
Replace the brake pads as a set.Refer to "FRONT BRAKE" on page 4-17.
Checking the brake fluid level
1. Stand the vehicle on a level surface.
NOTE:
Place the vehicle on a suitable stand.
Make sure the vehicle is upright.
2. Check:
Brake fluid level
Below the minimum level mark "a" → ...
Checking the rear brake pads
The following procedure applies to all of the
brake pads.
1. Operate the brake.
2. Check:
Rear brake pad
Wear indicator groove "a" has almost disappeared
Replace the brake pads as a set. ...
Other materials:
Coolant
The coolant level should be checked
before each ride. In addition, the coolant
must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the coolant level
Place the vehicle on a level surface
and hold it in an upright position.
TIP
...
Checking the steering head
1. Wash:
Bearings
Bearing races
2. Check:
Bearings
Bearing races
Damage/pitting →Replace.
3. Replace:
Bearings
Bearing races
a. Remove the bearing races from the steering
head pipe with a long rod "1" and hammer.
b. Remove the bearing race from the lower
bracket ...
Electrical components
1. Main switch
2. Clutch switch
3. Front brake light switch
4. Ignition coil
5. Throttle body sensor assembly (intake air
pressure sensor, intake air temperature
sensor, throttle position sensor)
6. FID (fast idle solenoid)
7. Rectifier/regulator
8. Lean angle sensor
9. Starting circui ...