2010 YAMAHA WR 450F Owners Manual

Page 225 of 230

YAMAHA WR 450F 2010  Owners Manual 7-17
THROTTLE POSITION SENSOR SYSTEM
9. Adjust:
• Throttle position sensor output 
voltage
Adjustment steps:
a. Adjust the installation angle of the 
throttle position sensor "1" to ob-
tain the spe

Page 226 of 230

YAMAHA WR 450F 2010  Owners Manual 7-18
LIGHTING SYSTEM
LIGHTING SYSTEM
INSPECTION STEPS
Refer to the following flow chart when inspecting the lighting system for possible problems.
• Remove the following parts before inspection.
1.

Page 227 of 230

YAMAHA WR 450F 2010  Owners Manual 7-19
LIGHTING SYSTEM
CHECKING THE TAILLIGHT 
(LEDs)
1. Disconnect the taillight coupler.
2. Connect two jumper leads "1" 
from the battery terminals to the 
respective coupler terminal as 
shown.
3. C

Page 228 of 230

YAMAHA WR 450F 2010  Owners Manual 7-20
SIGNALING SYSTEM
SIGNALING SYSTEM
INSPECTION STEPS
If the speedometer will not operate, use the following inspection steps.
*1 marked: Refer to "CHECKING AND CHARGING THE BATTERY" section in the

Page 229 of 230

YAMAHA WR 450F 2010  Owners Manual 7-21
SIGNALING SYSTEM
CHECKING THE COUPLERS AND 
LEADS CONNECTION
1. Check:
• Couplers and leads connection
Rust/dust/looseness/short-circuit
→Repair or replace.
CHECKING THE MULTI-FUNCTION 
DISPL

Page 230 of 230

YAMAHA WR 450F 2010  Owners Manual PRINTED IN JAPAN
(E) PRINTED ON RECYCLED PAPER YAMAHA MOTOR CO., LTD.
2500  SHINGAI  IWATA  SHIZUOKA  JAPAN
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