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:
Bearings and oil seals
Install bearings "1" and oil seals "2" so that the
manufacturer's marks or numbers are visible.
When installing oil seals "1", lubricate the oil seal
lips with a light coat of lithium-soap-based
grease. Oil bearings liberally when installing, if
appropriate.
CAUTION:Do not spin th ...
Checking the transmission
1. Measure:
Main axle runout
(with a centering device and dial gauge "1")
Out of specification Replace
the main axle.
2. Measure:
Drive axle runout
(with a centering device and dial gauge "1")
Out of specification Replace
the drive axle.
3. Check:
Transmiss ...
Outline of the fi system
The main function of a fuel supply system is to provide fuel to the
combustion chamber at the optimum
air-fuel ratio in accordance with the engine operating conditions and the
atmospheric temperature. In
the conventional carburetor system, the air-fuel ratio of the mixture that is
supplied t ...