Yamaha YZF-R125 Service Manual: Checking the rear wheel
1. Check:
- Rear wheel axle
- Rear wheel
- Wheel bearings
- Oil seals Refer to "CHECKING THE FRONT WHEEL" on page 4-8.
2. Check:
- Tire
- Rear wheel Damage/wear → Replace.
Refer to "CHECKING THE TIRES" on page 3-23 and "CHECKING THE WHEELS" on page 3-25.
3. Measure:
- Radial wheel runout
- Lateral wheel runout
Refer to "CHECKING THE FRONT WHEEL"
on page 4-8.
Checking the rear brake caliper bracket
1. Check:
- Rear brake caliper bracket Cracks/damage → Replace.
Checking the rear wheel drive hub
1. Check:
- Rear wheel drive hub Cracks/damage → Replace.
- Rear wheel drive hub dampers Damage/wear → Replace.
Removing the rear wheel (disc)
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle
so that there is
no danger of it falling over.
2. Elevate:
Rear wheel
NOTE:
Place the vehicle ...
Checking and replacing the rear wheel sprocket
1. Check:
Rear wheel sprocket
More than 1/4 tooth "a" wear
Replace the
rear wheel sprocket.
Bent teeth Replace the rear
wheel sprocket.
b. Correct
1. Drive chain roller
2. ...
Other materials:
Troubleshooting
The ignition system fails to operate (no spark or intermittent spark).
NOTE:
Before troubleshooting, remove the following part(s):
1. Seats
2. Fuel tank
3. Right side cover
4. Left side panel
5. Left upper side cowling
...
Changing the engine oil
1. Remove:
Right bottom cowling
Right upper side cowling
Right lower side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
2. Start the engine, warm it up for several minutes,
and then turn it off.
3. Place a container under the engine oil drain
bolt.
4. Install:
Engine oil d ...
Troubleshooting
Any of the following fail to light: turn signal lights, brake light or
indicator lights.
The horn fails to sound.
The fuel gauge fails to operate.
The speedometer fails to operate.
NOTE:
Before troubleshooting, remove the following part(s):
1. Seats
2. Fuel tank
3. Left upper ...