EAM20149
WIRING DIAGRAM
WR250F/WR250FP 2023
1. Crankshaft position sensor
2. AC magneto
3. Rectifier/regulator
4. Joint connector
5. Headlight relay
6. Main relay
7. Engine ground
8. Battery
9. Frame ground
10. Main fuse
11. Starter relay
12. Starter motor
13. Diode 3
14. Diode 5
15. CCU (Communication Control
Unit) (Except for Canada)
16. Resistor
17. Diode 2
18. Yamaha diagnostic tool cou-
pler
19. ECU (Engine Control Unit)
20. Ignition coil
21. Spark plug
22. Fuel injector
23. Fuel sender
24. Fuel pump
25. Radiator fan motor
26. Radiator fan motor fuse
27. Radiator fan motor relay
28. Intake air temperature sensor
29. Coolant temperature sensor
30. Throttle position sensor
31. Intake air pressure sensor
32. Speed sensor
33. Engine stop switch
34. Gear position switch
35. Mode switch (Except for Cana-
da)
36. Diode 1
37. Starting circuit cut-off relay
38. Clutch switch
39. Start switch
40. Diode 4
41. Taillight
42. Multi-function display
43. Headlight
A. Battery sub-lead
B. Wire harness
C. Ignition coil sub-lead
D. CCU sub-lead (Except for Can-
ada)
EAM30323
COLOR CODE
B
Black
Br
Brown
Dl
Dark blue
G
Green
Gy
Gray
L
Blue
Lg
Light green
O
Orange
P
Pink
R
Red
Sb
Sky blue
W
White
Y
Yellow
B/L
Black/Blue
B/O
Black/Orange
B/R
Black/Red
B/W
Black/White
B/Y
Black/Yellow
Br/W
Brown/White
G/B
Green/Black
G/W
Green/White
G/Y
Green/Yellow
L/B
Blue/Black
L/G
Blue/Green
L/R
Blue/Red
L/W
Blue/White
P/B
Pink/Black
P/L
Pink/Blue
R/B
Red/Black
R/L
Red/Blue
R/W
Red/White
R/Y
Red/Yellow
W/B
White/Black
W/G
White/Green
W/L
White/Blue
Y/B
Yellow/Black
Y/G
Yellow/Green
Y/W
Yellow/White
Summary of Contents for WR250F 2023
Page 8: ......
Page 15: ...LOCATION OF IMPORTANT LABELS 1 5...
Page 16: ...LOCATION OF IMPORTANT LABELS 1 6 AUS NZL ZAF EUR...
Page 56: ...TIGHTENING TORQUES 2 15...
Page 90: ...ELECTRICAL SYSTEM 3 32...
Page 138: ...FUEL TANK 6 3...
Page 146: ...ELECTRICAL COMPONENTS 7 7...
Page 160: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 8 13...
Page 170: ...CHASSIS 9 9...
Page 172: ...PRINTED IN JAPAN E...