Signaling System Inspection Steps - Yamaha WR450F(W) Owner's Service Manual

SIGNALING SYSTEM
INSPECTION STEPS
If the speedometer will not operate, use the following inspection steps.
*1 Check battery.
OK
Check each coupler and
wire connection.
OK
Check multi-function dis-
play.
OK
Check speed sensor.
*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
SIGNALING SYSTEM
No good
No good
Input voltage
Output voltage
No good
6 - 26
ELEC
Recharge or replace.
Repair or replace.
No good
Replace wire harness.
No good
Replace multi-func-
– +
tion display.
Replace.