2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 286Get this manual
BATTERYCHARGING SYSTEM
ALTERNATOR CHARGING COIL
INSPECTION
Remove the seatrear fender (page 2-"1
Disconnect the alternator JP connectorMeasure the resistance between the YeUowwire terminals of the alternator side connectorSTANDARD: 0.20.6 Check for continuity between 8ach Vellow wi terminal of the elternetor side connector and groundThere should be continuity
Replace the alternator sl81 if resistance is out of 0r specification, or ilany wi re has contin uity to groundRefer 0 seelion 11 for al ternator steIer replacement
REGULATORRECTIFIER
WIRE HARNESS INSPECTION
Remove the sealrear fender (page 2-4),