2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 295Get this manual
17IGNITION SYSTEM
COMPONENT LOCATION 17-2 SYSTEM DIAGRAM 17-2 SERVICE INFORMATION 17-3 TROUBLESHOOTING 17-4
IGNITION SYSTEM INSPECTION 17-5 IGNITION COIL 17-7 IGNITION CONTROL MODULE (lCM) 17-7 IGNITION TIMING 17-8