Yamaha YZF-R125 Owners Manual: Troubleshooting charts

Starting problems or poor engine performance


Starting problems or poor engine performance

Engine overheating

WARNING


  • Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

  • After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.


Engine overheating

TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant as soon as possible.

    Troubleshooting
    Although Yamaha motorcycles receive a thorough inspection before shipment from the factory, trouble may occur during operation. Any problem in the fuel, compression, or ignition systems, for ...

    Motorcycle care and storage
    ...

    Other materials:

    Assembling the front fork legs
    The following procedure applies to both of the front fork legs. WARNING Make sure the oil levels in both front fork legs are equal. Uneven oil levels can result in poor handling and a loss of stability. NOTE: When assembling the front fork leg, be sure to rep ...

    Engine oil and oil filter element
    The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element replaced at the intervals specified in the periodic maintenance and lubrication chart. To check the engine oil level Place the vehicle on a level surface and hol ...

    Troubleshooting
    Any of the following fail to light: headlight, high beam indicator light, taillight, license plate light, auxiliary light or meter light. NOTE: Before troubleshooting, remove the following part(s): 1. Seats 2. Fuel tank ...

    2020 Copyright www.yam-r125.net |