You need a wiring diagram so you can see what affects that circuit. Things like kill switches get dirty over time and need cleaning.
Do an on line search. Looks like you can download a manual for free!
1985 Kawasaki ZN700 Shaft, 4cyl
1989 Yamaha Venture Royale
2007 Yamaha Royal Star Venture
Last edited by RoadRunner322; 04-21-2019 at 07:27 PM.