I have 86 error on my Nc750x 2015. Whenever after a 30min ride and stop. If I turn on my ignition my meter remain blank but hiss still blinking. But my bike still able to start but no horn & signals light. It been 3 month I have change new speedometer and wire check. Any advice?
Blown Fuse - Honda NC700S Owner's Manual [Page 115]
should be similiar to your 750 and if memory doesnt fail me, it is the bottom left fuse in the fuse panel (the fuse controls the horn and signals).