Yamaha YZF-R125 Service Manual: Troubleshooting

The battery is not being charged.

NOTE:

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

1. Rider seat

2. Left side panel

3. Left lower side cowling

Troubleshooting


    Circuit diagram
    1. AC magneto 3. Rectifier/regulator 4. Main fuse 9. Battery ...

    Lighting system
    ...

    Other materials:

    Installing the shift forks and shift drum assembly
    1. Install: Shift fork-L "1" Shift fork-C "2" Shift fork-R "3" Shift drum assembly "4" Springs Shift fork guide bar "5" NOTE: The embossed marks on the shift forks should face towards the right side of the engine and be in the following sequence: "R", "C", "L". 2. Check: Tr ...

    Checking the relays
    Check each switch for continuity with the pocket tester. If the continuity reading is incorrect, replace the relay. 1. Disconnect the relay from the wire harness. 2. Connect the pocket tester ( × 1) and battery (12 V) to the relay terminal as shown. Check the relay operation. Out ...

    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 ...

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