Yamaha WR250F(W), Owner'S Service Manual, Page: 898 / 912

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ELEC
SIGNALING SYSTEM
SIGNALING SYSTEM
INSPECTION STEPS
If the speedometer will not operate, use the following inspection steps.
*1 marked: Refer to “BATTERY INSPECTION AND CHARGING” section in the CHAPTER 3.
NOTE:
• Remove the following parts before inspection.
1) Headlight
• Use the following special tools in this inspection.
Pocket tester:
YU-3112-C/
90890-03112
*1 Check battery. Recharge or replace.
Check each coupler and wire
connection.
Repair or replace.
Check multi-function display. Input voltage Replace wire harness.
Output voltage
Replace multi-function
display.
Check speed sensor. Replace.
OK
OK
OK
No good
No good
No good
No good
No good