2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 461Get this manual
BATTERYCHARGING SYSTEM (After '05)
GENERATING SYSTEM
GENERATING VOLTAGE INSPECTION
Start the engine and warm it up to the operating temperatureStop the engineRemove the top cover (page 3-5)TRX450ER: Disconnect the handlebar switch 6P natural connectorTRX450R: Disconnect the handlebar switch 4P natural connec-