2007 Yamaha Apex Factory Service Manual, Page 251Get this manual

2007 Yamaha Apex Factory Service Manual, Page 251

IGNITION SYSTEM MAIN SWITCH 1Disconnect: Main switch coupler 2Connect: Pocket tester 3Inspect: Main switch continuity FaultyReplaceSwitch
steps: Disconnect the main relay from the couplerS Connect the pocket tester1) and battery (12 V) to the main relay terminals