2002-2006 Yamaha YFR450FAR Service Manual LIT-11616-16-01, Page 347Get this manual
LIGHTING SYSTEM EB805020
CHECKING THE LIGHTING SYSTEM 1.If the headlights fail to come on: 1.Bulb and bulb socket
NO CONTINUITY
Check the bulb and bulb socket for continuityCONTINUITY Replace the bulb andor bulb socket
2.Voltage
Connect the pocket tester (DC 20 V) to the headlight couplers