2010 YAMAHA WR 250F engine

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Page 226 of 232

YAMAHA WR 250F 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 speci

Page 228 of 232

YAMAHA WR 250F 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. Ch
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