2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 505Get this manual
AUTOMATIC TRANSMISSION SYSTEM REPLACEME NT Remove the fo llowing: seat (page 2-4) ri ht side cove (pag 2-4) left fue ta nk side cove (page 2-6)
Disconnect he gea posit ion switc 3P con necto rRelease he gear positio switch ire rom he cla mps
Shift the sub -transm iss io int ne utra lRemove he two bol and he gear posi tio switch from th ra nkcase cover
Coat new O-ri ng it eng ine oil and in st all it onto new gear posit ion switch
Al ign he lo ng end of he switch pin ith he "N"