2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 442Get this manual
LIGHTSMETERSSWITCHES
CARBURETOR HEATERCARBURETOR HEATER SWITCH
SYSTEM INSPECTION
Remove the ca rburetor heater switch 2P red connect or from the frame under the front fender and disconnect itConnect the wire harness side connect or erminals with jumper wire
Remove the carburetor heater 2P natural connector
from the frame under the rear fender and disconnect itMeasure the voltage between the Brown (+) and Green {-I wire terminals of the wi re harness side
2P NATURAL CONNECTOR
connectorThere shou ld be battery voltage with the ignition