Honda ARX1200N2 2004 Owner's Manual page 208

The hull identification number (HIN) (2) is
located on the hull at the right side of the
PWC.
RIGHT SIDE
(2)
(2) hull identification number (HIN)
Vehicle Identification
The engine number (3) is stamped on the top
of the oil tank.
UNDER SEAT
(3)
(3) engine number
Technical Information
201