1999-2002 TRX400EX Fourtrax Service Manual, Page 226Get this manual
BATTERYICHARGING SYSTEM
REMOVALINSTALLATION
Removethe two bolts and regulatorrectifier from the frameDisconnect the 6P connector and remove the regula tor rectifierInstall the regulatorrectifier in the reverse order of removalQ;
CONNECTOR
ALTERNATOR CHARGING COIL