Yamaha YZF-R125 Service Manual: Circuit diagram

Circuit diagram


4. Main fuse

5. Main switch

9. Battery

14.Neutral switch

25.ECU (engine control unit)

31.Fuel sender

34.Rear brake light switch

35.Front brake light switch

37.Tail/brake light

38.Rear right turn signal light

39.Rear left turn signal light

40.Front right turn signal light

41.Front left turn signal light

42.Turn signal relay

43.Horn

48.Horn switch

49.Turn signal switch

56.Multi-function meter

57.Tachometer

61.Turn signal indicator light

62.Neutral indicator light

64.Ignition fuse

66.Signaling system fuse

67.Speed sensor

    Signaling system
    ...

    Troubleshooting
    Any of the following fail to light: turn signal lights, brake light or indicator lights. The horn fails to sound. The fuel gauge fails to operate. The speedometer fails to operate. NOTE ...

    Other materials:

    Installing the piston and cylinder
    1. Install: Top ring "1" 2nd ring "2" Oil ring expander "3" Lower oil ring rail "4" Upper oil ring rail "5" NOTE: Be sure to install the piston rings so that the manufacturer marks or numbers face up. 2. Install: Piston "1" Piston pin "2" Piston pin clips "3" NOTE: ...

    Installing the thermostat
    1. Install: Thermostat NOTE: Install the thermostat with its breather hole "a" facing up. 2. Install: Copper washer Coolant temperature sensor CAUTION:Use extreme care when handling the coolant temperature sensor. Replace any part that was dropped or subjected to ...

    Removing the piston
    1. Remove: Piston pin clips "1" Piston pin "2" Piston "3" CAUTION:Do not use a hammer to drive the piston pin out. NOTE: Before removing the piston pin clip, cover the crankcase opening with a clean rag to prevent the piston pin clip from falling in ...

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