2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 99Get this manual
FUEL SYSTEM (DFI) 3-51 I Character-51, 52C OL 1, CO L2)
Ignition Coil #1, #4: Service Code 51-COL1 Ignition Coil #2, #3: Service Code 52-COL2
Ignition Coil RemovalInsta lla tion CA UTION
Never drop the ignition coils, especially on hard surfaceSuch shock to the ignition coil can damage itee ShaptIegrnition System section in the Electrical System c
Input Voltage Inspection
Be sure the battery is fully charged