2007 Yamaha Apex Factory Service Manual, Page 266Get this manual

2007 Yamaha Apex Factory Service Manual, Page 266

LIGHTING SYSTEM HEADLIGHT RELAY 1Inspect: Headlight relay (black coupler) Inspection steps: Disconnect the headlight relay
tester probeBlueWhite Negative tester probeGreen High beam Positive battery terminalLight green Negative battery terminalBluegreen