Yamaha YZF-R125 Service Manual: Assembling the oil pump
1. Lubricate:
- Oil pump inner rotor
- Oil pump outer rotor
- Oil pump driven gear
(with the recommended lubricant)
2. Install:
- Oil pump outer rotor
- Oil pump inner rotor "1"
- Oil pump driven gear
- Pin "2"
NOTE:
When installing the inner rotor, align the pin "2" in the oil pump shaft with the groove "a" in the inner rotor "1".
3. Check:
- Oil pump operation Refer to "CHECKING THE OIL PUMP" on page 5-49.
Checking the oil pump
1. Check:
Oil pump drive gear
Oil pump driven gear
Oil pump housing
Oil pump housing cover
Cracks/damage/wear Replace the
defective
part(s).
2. Measure:
Inner-rotor-to-outer-r ...
Installing the oil pump
1. Install:
Oil pump assembly
CAUTION:After tightening the screws, make sure
the
oil pump turns smoothly.
...
Other materials:
Checking the clutch boss
1. Check:
Clutch boss splines
Damage/pitting/wear Replace the
clutch
boss.
NOTE:
Pitting on the clutch boss splines will cause erratic
clutch operation.
Checking the pressure plate
1. Check:
Pressure plate
Cracks/damage Replace.
Checking the clutch push lever and short clutch push ...
Installing the drive chain
1. Lubricate:
Drive chain
Master link
2. Install:
Drive sprocket
Drive sprocket retainer bolts
3. Install:
Master link
O-rings
Master link plate
Master link clip "1"
CAUTION:
The closed end of the master link clip must
face in the direction of drive ch ...
Checking the rear brake hose
1. Check:
Brake hoses "1"
Cracks/damage/wear
Replace.
2. Check:
Brake hose holder "2"
Loose connection Tighten the
holder bolt.
Loose or open holder Fasten
properly.
3. Hold the vehicle upright and apply the rear
brake several times.
4. Check:
Brake ho ...