Yamaha WR450F 2021 Owner's Service Manual page 397

EAM20149
WIRING DIAGRAM
WR450FM 2021
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. Coupler (not used)
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. Diode 1
36. Starting circuit cut-off relay
37. Clutch switch
38. Start switch
39. Diode 4
40. Taillight
41. Multi-function display
42. Headlight
A. Battery sub-lead
B. Wire harness
C. Ignition coil sub-lead
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/L White/Blue
Y/B Yellow/Black
Y/G Yellow/Green
Y/W Yellow/White