1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 71Get this manual
ALTERNATOR
ALTERNATOR REMOVAL
ROTOR REMOVAL
Remove the left crankcase cover attaching bolts and remove the left crankcase coverRemove the gasket
Hold the rotor with universa holder and remove the rotor nutTOOL:
Universal holder
07725-0030000