2001-2003 Honda TRX500FA Factory Service Manual, Page 388Get this manual
HONDAMATIC IN PUT VOLTAGE
Measure the np ut vo ltage between he Yellowlwh ile and Greenlyellow t-l ire term inals of he hrottle +) sensor co necto with the ig nit io switch ON STANDARD4.7- 5.3 V
REMOVALINSTALLATION
NOTE: Do not loosen the throttle sensor attaching screws (to rx) unless the throttle sen sor requires
replacementIt may caus the sensor to move out