1981-1984 Official Honda ATC250R Shop Manual, Page 174Get this manual
15ELECTRICAL SYSTEM SERVICE INFORMATION TROUBLESHOOTING IGNITION COIL 1515 -2 15 -3 1515 -4 15IGNITION TIMING HEADLIGHT TAILLIGHT
ATC 2S0R
15151515 -7 15 -7
A GENERATOR
COl UNIT PULSE GENERATOR
HEAD LIGHT DIMMER SWITCH ENGINE STOP SWITCH
SERVICE INFORMATION
GENERAL INSTRUCTIONS