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:
Owner's tool kit
Owner's tool kit
Owner's tool kit
Engine oil drain attachment
The owner's tool kit is located under the
rider seat.
The service information included in this
manual and the tools provided in the
owner's tool kit are intended to assist
you in the performance of preventive
maint ...
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 ...
Checking the crankshaft
1. Measure:
Crankshaft runout
Out of specification Replace
the crankshaft,
bearing or both.
NOTE:
Turn the crankshaft slowly.
2. Measure:
Big end side clearance
Out of specification Replace
the crankshaft.
3. Measure:
Crankshaft width
Out of specification&nbs ...