1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 206Get this manual
15IGNITION SYSTEM SERVICE INFORMATION TROUBLESHOOTING IGNITiON COIL ALTERNATOR EXCITER COIL
15-1 15-1 15-2 15-3
COl UNIT PULSE GENERATOR IGNITION TIMING
15-3 15-4 15-4
SERVICE INFORMATION
GENERAL
Ignit ion timing does not normally need to be adjusted since the COl
For spark plug inspection, refer to page -3
Discharge Ignitionl unit is factory preset
For pulse generator and stator coil removal, refer to section 9
SPECIFI CATI ONS
Spark plug
DR8ES-L (NGK), X24ESR-U (NO)
Spark plug gap
0.60.7 mm {O.0240.028 int
At idle Full advance
Ignition timing
Ignition coil
Primary coil resistance