1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 221Get this manual
LIGHTSSWITCH ES OIL TEMPERATURE WARN ING INDICATOR SYSTEM i21 HANDLEBAR SWITCH
111 H"'DLIGHT
13) OIL TEMPERATURE WARNING INDICATOR
14 IGNITION SWITCH (9) RECTIFIER (5) REVERSE SWITCH
(8) CONTROL UNIT NEUTRAL SWITCH
17 OIL TEMPERATURE SENSOR