2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 437Get this manual
ELECTRIC STARTER STARTER RELAY VOLTAGE Measure the voltage between the Yellowred wire terminal (+) of the harness side 2P connector and ground ()If the battery voltage appears only when the starter switch is pushed with the ignition switch ON, the circuit is normalOPERATION CHECK YELLOWRED(+)
CONNECTOR
GROUND(-) Disconnect battery positive (+) cable and starter motor cable from the starter relay switchConnect the fully charged 12 battery positive terminal to the Yellowred wire terminal and negative terminal to the Light greenred wire terminal of the relay switch side 2P connectorThere should be continuity between the cable terminals while the battery is connected, and no continuity when the battery is disconnectedSTARTER RELAY SWITCH