2000-2005 Yamaha F40B Outboard Service Manual, Page 18Get this manual
GEN INFO
IDENTIFICATION IDENTIFICATION
SERIAL NUMBER
The outboard motor's serial number is stamped on label which is attached to the port clamp bracket
As an antitheft measure, special label on which the outboard motor's serial number is stamped is bonded to the port clamp bracketThe label is specially treated so that peeling it off causes cracks across the serial number