2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 329Get this manual
IGNITION SYSTEM
SERVICE INFORMATION
GENERAL
Some electrical components may be damaged if terminals or connectors are connected or disconnected while the ignition switch is ON and current is present When servicing the ignition system, always follow th checks in the troubleshooting chart on page 18-4 The ignition timing cannot be adjusted since the Ignition Control Module ueM) is factory preset The leM may be damaged if droppedAlso if the connect or is disconnected when current is flowing, the e)(cessive voltage may damage the leMAlways turn off the ignition switch before servicing faul ty ignition system is often related to poor connectionsCheck those connections before proceeding Use spark plug of the correct heat rangeUsing spark plug with an incorrect heat range can damage the engine CKP sensor and alternator exciter coil (stator) removallinstallation (page 11 -6 Ignition switch inspection (page 20-5) Engine stop switch inspection (page 20-7) Gear position switch servicing (page 20-9)