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:

    Care
    While the open design of a motorcycle reveals the attractiveness of the technology, it also makes it more vulnerable. Rust and corrosion can develop even if high-quality components are used. A rusty exhaust pipe may go unnoticed on a car, however, it detracts from the overall appearanc ...

    Checking the switches
    1. Clutch switch 2. Main switch 3. Front brake light switch 4. Sidestand switch 5. Rear brake light switch 6. Neutral switch 7. Turn signal switch 8. Horn switch 9. Dimmer switch 10.Pass switch 11.Engine stop switch 12.Start switch Check each switch for continuity with the pocket tes ...

    Checking the transmission
    1. Measure: Main axle runout (with a centering device and dial gauge "1") Out of specification Replace the main axle. 2. Measure: Drive axle runout (with a centering device and dial gauge "1") Out of specification Replace the drive axle. 3. Check: Transmiss ...

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