Yamaha YZ450FN 2022 Owner's Service Manual page 297

FUEL INJECTION SYSTEM
1. Crankshaft position sensor
2. AC magneto
3. Rectifier/regulator
4. Joint connector
6. Battery
7. Engine ground
8. Frame ground
9. Fuse
14.CCU (Communication Control Unit)
15.Yamaha diagnostic tool coupler
16.ECU (Engine Control Unit)
17.Ignition coil
18.Spark plug
19.Fuel injector
20.Fuel pump
21.Intake air temperature sensor
22.Coolant temperature sensor
23.Throttle position sensor
24.Intake air pressure sensor
25.Engine stop switch
27.Gear position switch
A. Battery sub-lead
B. Wire harness
C. Ignition coil sub-lead
D. CCU sub-lead
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