1999-2004 Honda TRX400EX FourTrax Service Manual, Page 237Get this manual
ELECTRIC STARTER
TROUBLESHOOTING
Starter motor will not turnCheck for blown fuse (15 A) Check that the battery is fully charged and in good condition
Abnormalconnected batterv cable Poorlv Open'circuit in battery cable
Check for loose or poorly connected starter relav switch terminals and connectors
Abnormal
Poorly connected terminals or connectors
Check for loose or poorly connected starter motor cableand oDen circuit in starter motor cable
Abnormal
+-Poorly connected starter motor cable
ODen circuit in starter motor cable
With the ignition switch ON, push the starter switch and check for "Click" sound from the starter relay switch