Yamaha YZF-R125 Service Manual: Electrical components

Electrical components


1. Main switch

2. Clutch switch

3. Front brake light switch

4. Ignition coil

5. Throttle body sensor assembly (intake air pressure sensor, intake air temperature sensor, throttle position sensor)

6. FID (fast idle solenoid)

7. Rectifier/regulator

8. Lean angle sensor

9. Starting circuit cut-off relay

10.Turn signal relay

11.Radiator fan motor relay

12.Headlight relay

13.ECU (engine control unit)

14.Fuse box

15.Starter relay

16.Battery

17.Rear brake light switch

18.Sidestand switch

19.Neutral switch

20.Crankshaft position sensor

21.Coolant temperature sensor

22.Speed sensor

23.Radiator fan

24.Horn

Troubleshooting
If the fuel pump fails to operate. NOTE: Before troubleshooting, remove the following part(s): 1. Rider seat 2. Fuel tank ...

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 ...

Other materials:

Identification
Vehicle identification number The vehicle identification number "1" is stamped into the right side of the steering head pipe. Model label The model label "1" is affixed to the frame. This information will be needed to order spare parts. ...

General chassis
Installing the air filter case 1. Install: Air filter case joint clamp NOTE: Align the projection "a" on the air filter case with the slot "b" in the air filter case joint clamp. ...

Replacing a turn signal light bulb
Remove the turn signal light lens by removing the screw. Screw Remove the burnt-out bulb by pushing it in and turning it counterclockwise. Insert a new bulb into the socket, push it in, and then turn it clockwise until it stops. Install the lens by installing ...

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