1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 203Get this manual
ELECTRICAL SYSTEM
IGNITION SYSTEM INSPECTION
r-, After 'B6:
: (81 IGNITION SWITCH :
(11 COl UNIT
BIW BIIY
(2) IGNITION COIL
(3) SPARK PLUG
3P CONNECTOR BIW
(7) ENGINE STOP SWITCH
(5) PULSE GENERATOR
(6) ALTERNATOR
(9) BI: Black W: White (11) Y: Yellow (12) Bu: Blue (13) G: Green {14} R: Red