Yamaha YZF-R125 Service Manual: Assembling the oil pump

Yamaha YZF-R125 Service Manual / Engine / Oil pump / 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".

Assembling the oil pump


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 fid (fast idle solenoid)
    1. Disconnect: FID (fast idle solenoid) coupler 2. Check: FID (fast idle solenoid) resistance a. Disconnect the FID (fast idle solenoid) coupler from the FID. b. Connect the pocket tester ( × 10) to the terminals of the FID (fast idle solenoid). Positive tester probe ...

    Circuit diagram
    2. Crankshaft position sensor 4. Main fuse 5. Main switch 6. Radiator fan motor fuse 8. Sidestand switch 9. Battery 17.Engine stop switch 19.Intake air pressure sensor 20.Intake air temperature sensor 21.Throttle position sensor 22.Coolant temperature sensor 23.Lean angle sensor 24.S ...

    Checking the steering
    Worn or loose steering bearings may cause danger. Therefore, the operation of the steering must be checked as follows at the intervals specified in the periodic maintenance and lubrication chart. Place a stand under the engine to raise the front wheel off the ground. WARNING! To ...

    2026 Copyright www.yam-r125.net |