Yamaha YZF-R125 Service Manual: Circuit diagram

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.Self-diagnosis signal connector

25.ECU (engine control unit)

26.Ignition coil

27.Spark plug

28.FID (fast idle solenoid)

29.Fuel injector

30.Fuel pump

32.Radiator fan motor relay

33.Radiator fan motor

63.Engine trouble warning light

64.Ignition fuse

66.Signaling system fuse

67.Speed sensor

    Fuel injection system
    ...

    Ecu self-diagnostic function
    The ECU is equipped with a self-diagnostic function in order to ensure that the fuel injection system is operating normally. If this function detects a malfunction in the system, it immediately o ...

    Other materials:

    Removing the front brake caliper
    NOTE: Before disassembling the brake caliper, drain the brake fluid from the entire brake system. 1. Remove: Brake hose union bolt "1" Copper washers "2" Brake hose "3" NOTE: Put the end of the brake hose into a container and pump out the brake fluid carefully. ...

    Catalytic converters
    This vehicle is equipped with catalytic converters in the exhaust system. WARNING The exhaust system is hot after operation. To prevent a fire hazard or burns: Do not park the vehicle near possible fire hazards such as grass or other materials that easily burn. Park the vehic ...

    Replacing the headlight bulbs
    The following procedure applies to the low beam headlight bulb. 1. Remove: Headlight bulb cover "1" 2. Remove: Headlight bulb holder "1" 3. Remove: Headlight bulb "1" WARNINGSince the headlight bulb gets extremely hot, keep flammable products and your ...

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