2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 455Get this manual
SELECTABLE 4WD SYSTEM
SERVICE INFO RMATION
GENERAL
Th drive ode (2WD 4WD) is changed electrica lly by pe ra ting front final clutch wit the 2WD4WD select switc hen checking the selecta ble 4W system, always follow the steps in the tro ub les hoot ing (page 23-4) See page 17-2, for front final clutch information faulty selectable 4WD system is ofte related to poorly co nnecte or corroded co nnectionsCheck those connections before procee ding