Hey Jamm,
You may wont to wiggle yo plug that goes into ignition switch ,mine had a short(wire Lil burnt),would let thing go dead as you said ,May/can happen while riding I believe,I bought new it went bad,(whole dang thing fell apart brand new)taped it up and still not working right SO,Now running on hidden switches on a hot wire,But works just fine and no worries,
1977 CB750 F2 Super Sport
<LET THOSE WHO RIDE DECIDE><RIDE TO LIVE-LIVE FOR JESUS>
Native American from central Cal, Kickstand UP in S.W.Missouri,