2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 300Get this manual
SIGNAL SYSTEM EBS01077
2The neutral indicator light fails to come on1Neutral indicator light bulb and socket Check the neutral indicator light bulb and socket for continuityRefer to "CHECKING THE BULBS AND BULB SOCKETS" Are the neutral indicator light bulb and socket OK? YES NO
3Voltage Connect the pocket tester (DC 20 V) to the indicator light coupler (wire harness side) as shownPositive tester probebrown Negative tester probesky blue