1993 Mercury Sport Jet Models Where can I find my serial number? 90 H090J00NX 90 [JETPUMP] H61AP20NX H62SP20ND 90 (JET DRIVE) 1993 0E021000 THRU 0E036999 [USA] [Serial] 90 (POWERHEAD - NON OIL INJECTION) 1993 0E023150 THRU 0E033710 [Serial]