2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 285Get this manual
16BATTERYCHARGING SYSTEM
COMPONENT LOCATION 16-2 SYSTEM DIAGRAM 16-2 SERVICE INFORMATION 16-3 TROUBLESHOOTING 16-5
BATIERY 16-6 CHARGING SYSTEM INSPECTION 16-8 REGULATORRECTIFIER 16-9 ALTERNATOR CHARGING COIL 16-10