2009 YAMAHA WR 450F light

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Page 208 of 226

YAMAHA WR 450F 2009  Owners Manual 7-5
IGNITION SYSTEM
SPARK GAP TEST
1. Disconnect the ignition coil from 
spark plug.
2. Remove the ignition coil cap.
3. Connect the dynamic spark tester 
"1" (ignition checker "2") as 
shown.
• Ign

Page 222 of 226

YAMAHA WR 450F 2009  Owners Manual 7-19
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 223 of 226

YAMAHA WR 450F 2009  Owners Manual 7-20
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 224 of 226

YAMAHA WR 450F 2009  Owners Manual 7-21
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
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