2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 392Get this manual
IGNITION SYSTEM
TROUBLESHOOTING
Inspect the following before diagnosing the system- Faulty spark plugLoose direct ignition coil connectors
- Loose direct ignition coil and spark plug condition
- Water got into the direct ignition coil (leaking the ignition coil secondary voltage)
If there is spark at one cylinder, temporarily exchange the direct ignition coil with known-good one and perform the spark testIf there is spark, the exchanged direct ignition coil is faulty
No spark at all plugs
iusual condition No peak voltage