Yamaha YZF-R125 Service Manual: Troubleshooting

NOTE:

  • Before troubleshooting, remove the following part(s):

1. Rider seat

2. Fuel tank

3. Right upper side cowling

4. Passenger seat

Troubleshooting


    Circuit diagram
    4. Main fuse 5. Main switch 6. Radiator fan motor fuse 9. Battery 22.Coolant temperature sensor 32.Radiator fan motor relay 33.Radiator fan motor 59.Coolant temperature warning light 64.Ig ...

    Fuel injection system
    ...

    Other materials:

    Checking the diode
    1. Check: Diode Out of specification Replace. NOTE: The pocket tester or the analog pocket tester readings are shown in the following table. a. Disconnect the diode from the wire harness. b. Connect the pocket tester ( × 1) to the diode terminals as shown. c. Check the diod ...

    Installing the rear shock absorber assembly
    1. Install: Rear shock absorber assembly Relay arm "1" NOTE: Install the relay arm as shown in the illustration. 2. Tighten: Rear shock absorber assembly upper nut Relay arm nut Rear shock absorber assembly lower nut 3. Install: Connecting arms NOTE: When ins ...

    Checking the fuel pressure
    1. Check: Pressure regulator operation a. Remove the fuel hose connector cover "1" and disconnect the fuel hose "2" from the fuel pump. CAUTION:Although the fuel has been removed from the fuel tank, be careful when removing the fuel hose, since there may be fuel remaining i ...

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