2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 294Get this manual
LIGHTING SYSTEM EBS01067 EAS00776
TROUBLESHOOTING Any of the following fail to light: headlight, tailbrake lightCheck: 1light switch 2Stator coil resistance 3wiring connections (of the entire lighting system) NOTE: Before troubleshooting, remove the following part(s): 1seat 2front panel 3front fender 4rear fender 5side cover Troubleshoot with the following special tool(s)Pocket tester 90890-03112 Analog pocket tester YU-03112-C
EAS00783