ELECTRICAL COMPONENTS
8-68
c. Start the engine and let it run at about
5000 r/min.
d. Measure the output voltage.
EAM30358
CHECKING THE SPEED SENSOR
1. Check:
•
Speed sensor output voltage
Out of specification
Replace.
a. Connect the test harness– speed sensor
5TJ (3P) to the speed sensor coupler and
wire harness.
b. Connect the digital circuit tester (DC) to
the test harness– speed sensor 5TJ (3P).
c. Push the start switch.
d. Elevate the front wheel and slowly turn it.
e. Measure the voltage (DC 5 V) of white and
black/white. With the front wheel slowly ro-
tating, voltage alternates between 0 V and
5 V.
EAM30359
CHECKING THE FUEL SENDER
1. Disconnect:
•
Starter motor lead
(from the starter relay)
2. Connect:
•
Fuel pump coupler
3. Push the start switch.
4. Check:
•
Fuel level warning light
Out of specification
Replace the fuel
pump.
EAM30360
CHECKING THE RESISTOR
1. Disconnect:
•
Resistor coupler
(from the wire harness)
2. Check:
•
Resistor resistance
Out of specification
Replace the resistor.
•
Positive tester probe
Red “1”
•
Negative tester probe
Black “2”
Output voltage reading cycle
0.6 V to 4.8 V to 0.6 V to 4.8 V
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
Test harness– speed sensor 5TJ
(3P)
90890-03228
Test harness– speed sensor 5TJ
(3P)
YU-03228
•
Positive tester probe
Black/Blue “1”
•
Negative tester probe
White/Blue “2”
2
1
B
W W
R
Fuel pump is atmosphere “A”
Fuel level warning light comes on
Fuel pump is soaked in fuel “B”
Fuel level warning light goes off
W/L
L
B/L
2
1
Summary of Contents for WR450FN 2022
Page 5: ...EAM20093 YAMAHA MOTOR CORPORATION U S A WR MOTORCYCLE LIMITED WARRANTY...
Page 8: ......
Page 10: ......
Page 41: ...MULTI FUNCTION DISPLAY 1 29...
Page 62: ...ELECTRICAL SPECIFICATIONS 2 9 Radiator fan motor fuse 5 0 A Spare fuse 15 0 A...
Page 71: ...TIGHTENING TORQUES 2 18...
Page 72: ...CABLE ROUTING DIAGRAM 2 19 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view...
Page 74: ...CABLE ROUTING DIAGRAM 2 21 Frame and engine right side view...
Page 76: ...CABLE ROUTING DIAGRAM 2 23 Handlebar front view...
Page 78: ...CABLE ROUTING DIAGRAM 2 25 Frame and engine top view...
Page 80: ...CABLE ROUTING DIAGRAM 2 27 Frame and battery top view...
Page 82: ...CABLE ROUTING DIAGRAM 2 29 Rear brake right side view...
Page 84: ...CABLE ROUTING DIAGRAM 2 31 Front brake front view and right side view...
Page 86: ...CABLE ROUTING DIAGRAM 2 33 Taillight top view and right side view...
Page 88: ...CABLE ROUTING DIAGRAM 2 35...
Page 205: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Connecting rod 2 Oil nozzle 3 Crankshaft...
Page 207: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Oil filter element 2 Oil pump 3 Oil strainer...
Page 286: ...WATER PUMP 6 9...
Page 296: ...THROTTLE BODY 7 9...
Page 299: ......
Page 300: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Page 304: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Page 310: ...CHARGING SYSTEM 8 11 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Page 313: ...CHARGING SYSTEM 8 14...
Page 314: ...SIGNALING SYSTEM 8 15 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM...
Page 318: ...LIGHTING SYSTEM 8 19 EAM20153 LIGHTING SYSTEM EAM30346 CIRCUIT DIAGRAM...
Page 321: ...LIGHTING SYSTEM 8 22...
Page 322: ...COOLING SYSTEM 8 23 EAM20155 COOLING SYSTEM EAM30350 CIRCUIT DIAGRAM...
Page 325: ...COOLING SYSTEM 8 26...
Page 326: ...FUEL INJECTION SYSTEM 8 27 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM...
Page 351: ...FUEL INJECTION SYSTEM 8 52...
Page 352: ...FUEL PUMP SYSTEM 8 53 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Page 386: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Page 396: ...CHASSIS 10 9...
Page 398: ......
Page 400: ......