2002-2006 Yamaha YFR450FAR Service Manual LIT-11616-16-01, Page 353Get this manual
SIGNAL SYSTEM CHECKING THE SIGNAL SYSTEM 1.If the brake light fails to come on: 1.Bulb and bulb socket
Check the bulb and bulb socket for continuityCONTINUITY
NO CONTINUITY
Replace the bulb andor bulb socketNO CONTINUITY
2.Brake light switches Refer to "CHECKING THE SWITCH"CONTINUITY