ELECTRICAL COMPONENTS
8-51
TIP
•
For instructions on charging and handling the
battery charger, refer to the battery charger’s
instruction manual.
•
Once battery charging starts, the sleep mode
is canceled.
5. Charge the battery until it is fully charged.
6. Install:
•
Battery terminal
7. Connect:
•
Battery lead
(to the battery terminals)
NOTICE
ECA26980
First, connect the positive battery lead, and
then the negative battery lead.
8. Check:
•
Battery terminal
Dirt
Clean with a wire brush.
Loose connection
Connect properly.
9. Lubricate:
•
Battery terminal
10.Install:
•
Seat
•
Side cover (left/right)
Refer to “GENERAL CHASSIS” on page 4-1.
Checking the battery
NOTICE
ECA26080
The battery has a limited service life. If the
battery cannot be charged or it is determined
that the battery cannot be used after check-
ing the battery, it should be replaced. When
replacing the battery, be sure to use a
Yamaha genuine lithium-ion battery.
TIP
Do not check the battery at high temperature of
65
C (149
F) or more or low temperatures be-
low 10
C (50
F). Otherwise, the control feature
preventing battery charging and discharging will
temporarily intervene.
1. Check:
•
Battery
a. If the battery is hot, wait until the battery
has cooled down to the ambient tempera-
ture.
b. Measure the voltage between the battery
terminals.
13.25 V or more
The battery is normal.
Checking is finished.
Less than 13.25 V
Go to step (c).
c. Connect the battery charger (special tool)
to the battery and charge it.
TIP
For instructions on charging and handling the
battery charger, refer to the battery charger’s in-
struction manual.
d. If the battery is hot, wait until the battery
has cooled down to the ambient tempera-
ture.
e. Measure the voltage between the battery
terminals.
13.25 V or more
The battery is normal.
Checking is finished.
10 V or more and less than 13.25 V
Perform from step (c) again.
Less than 10 V
Replace the battery.
TIP
Before replacing the battery, make sure that the
battery temperature is proper (temperature not
more than 65
C (149
F) or less than 0
C (32
F)). Otherwise, wait until the battery tempera-
ture is proper and perform the procedure from
step (c) again.
EAM30292
CHECKING THE RELAYS
Check each switch for continuity with the digital
circuit tester. If the continuity reading is incor-
rect, replace the relay.
1. Disconnect the relay from the wire harness.
2. Connect the digital circuit tester (
) and bat-
tery (12 V) to the relay terminal as shown.
Check the relay operation.
Lithium battery charger
90890-05376
Lithium battery charger
DBY-ACC51-70-02
Recommended lubricant
Dielectric grease
Lithium battery charger
90890-05376
Lithium battery charger
DBY-ACC51-70-02
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
Summary of Contents for YZ450FX 2022
Page 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 10: ......
Page 44: ...MOTORCYCLE CARE AND STORAGE 1 32 ...
Page 61: ...TIGHTENING TORQUES 2 16 ...
Page 62: ...CABLE ROUTING DIAGRAM 2 17 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view ...
Page 64: ...CABLE ROUTING DIAGRAM 2 19 Frame and engine right side view ...
Page 66: ...CABLE ROUTING DIAGRAM 2 21 Handlebar front view ...
Page 68: ...CABLE ROUTING DIAGRAM 2 23 Frame and engine top view ...
Page 70: ...CABLE ROUTING DIAGRAM 2 25 Frame and battery top view ...
Page 72: ...CABLE ROUTING DIAGRAM 2 27 Rear brake right side view ...
Page 74: ...CABLE ROUTING DIAGRAM 2 29 ...
Page 112: ...ELECTRICAL SYSTEM 3 36 ...
Page 154: ...HANDLEBAR 4 40 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in ...
Page 189: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Connecting rod 2 Oil nozzle 3 Crankshaft ...
Page 191: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Oil filter element 2 Oil pump 3 Oil strainer ...
Page 270: ...WATER PUMP 6 9 ...
Page 280: ...THROTTLE BODY 7 9 ...
Page 283: ......
Page 284: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM ...
Page 288: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM ...
Page 292: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM ...
Page 295: ...CHARGING SYSTEM 8 12 ...
Page 296: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM ...
Page 300: ...FUEL INJECTION SYSTEM 8 17 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM ...
Page 325: ...FUEL INJECTION SYSTEM 8 42 ...
Page 326: ...FUEL PUMP SYSTEM 8 43 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM ...
Page 358: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15 ...
Page 368: ...CHASSIS 10 9 ...
Page 370: ......
Page 372: ......
Page 373: ...YZ450FXN 2022 WIRING DIAGRAM BEX 2819U 11_W D indd 1 2021 05 06 15 18 37 ...
Page 374: ...YZ450FXN 2022 WIRING DIAGRAM BEX 2819U 11_W D indd 2 2021 05 06 15 18 37 ...