2007-2009 Honda TRX300EX TRX300X service manual, Page 335Get this manual
ELECTRIC STARTER Disconnect the battery positive cable and starter motor cable by removing the terminal nuts and spring washersRemove the wire band, and remove the starter relay switch from the stay
FUNCTION INSPECTION
Connect the fully charged 12 battery positive terminal to the Yellowred wire terminal and negative terminal to the Yellowgreen wire terminal of the starter relay switch There should be continuity between the cable terminals while the battery is connected, and no continuity when the battery is disconnected