The Kawasaki 3744 CDI Ignitor box (OE #21119‑3744) is the electronic ignition control module used in 1995–1996 ZXI 900 and related Kawasaki marine engines. Known failure modes include burned or cracked PCB traces from over‑voltage, failed electrolytic capacitors on the power supply section, and shorted ignition coil drivers that cause intermittent spark loss or complete engine shutdown. First‑check diagnostics: verify input voltage to the CDI (12 V nominal) and confirm proper grounding; inspect the board for visible burn marks, cracked traces, or swollen/ruptured capacitors; test the output of the ignition driver pins with a multimeter or oscilloscope while the engine is cranking to ensure correct pulse timing.[oss-gpt-20b]