2017 YAMAHA WR 250F Owners Manual

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YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
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Fault code No. 43
ItemFuel system voltage: incorrect voltage supplied to the fuel in-
jector and fuel pump.
Fail-safe systemAble to start engine
Able to drive vehicle
Diagno

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YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
9-50
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
Fault code No. 44
ItemEEPROM fault code number: an error is detected while read-
ing or

Page 387 of 432

YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
9-51
Fault code No. 46
Item Charging voltage is abnormal.
Fail-safe systemAble/Unable to start engine
Able/Unable to drive vehicle
Diagnostic code No.—
Diagnostic tool display

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YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
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TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay. F

Page 389 of 432

YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
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TIP
Before troubleshooting, disconnect the starter motor lead from the starter motor. 3 Wire harness continuity. Open or short circuit  Re-
place the wire harness.
light

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YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
9-54
TIP
Before troubleshooting, disconnect the starter motor lead from the starter motor. 4 Yamaha diagnostic tool mal-
function.Replace the Yamaha diag-
nostic tool.Push the st

Page 391 of 432

YAMAHA WR 250F 2017  Owners Manual FUEL INJECTION SYSTEM
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TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
Fault code No. Er-4
ItemRegistered data cannot be received from the Yamaha diagnos-
tic

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YAMAHA WR 250F 2017  Owners Manual FUEL PUMP SYSTEM
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EAS2GBB378
FUEL PUMP SYSTEM
EAS2GBB379CIRCUIT DIAGRAM
ONOFF
ONOFF
BBB
BBB
RRR
RRR/L
Br Br Br
Br Br
(Gy)
(Gy)B/LGyWW WB Gy
B R
WW W
BR
R,R/Y
G
R
Y/B
R,R/W
Br
RL/R
(B)R/YR/WBr/WL/G