Join Date: Aug 2011
Year/Make/Model: 2014 Kawasaki Vulcan Vaquero ABS SE
Color: Orange SE
First thing that comes to mind, like others have said, is loose connections. Remove the small allen screw that holds the chrome (or black) bezel over the speedo. Remove, inspect, clean if necessary, and re-install the connector harness there.
Give the loss of power, I'd much more suspect the issue is under your seat though. Check that both battery connections are tight and clean. Often a screwdriver isn't enough, that's why those screws are also hex head! Put your wrench on it and get it tight, make sure they are clean and free of corrosion. Sometimes a little sandpaper on the terminals and connections helps, too.
"8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us."
Romans 5:8 (NIV)
2014 Kawasaki Vulcan 1700 Vaquero ABS SE
iPod Connector Kit, Kuryakyn Highway Pegs, Mustang Touring Seat, Marvella's Hitch, Kuryakyn Trailer Wiring Kit, Haul-Master Tag-a-Long Cargo Trailer
2011 Honda Shadow Aero 750 (Wife's)
Memphis shades quick-release windshield, OEM Solo Seat, Mustang Fender Bib, Chrome Solo Luggage Rack
Past: 2006 Vulcan 900 Classic LT