1969 h1 500 suddenly cuts out

[gsxrtriple1]

Ok this has been bugging me its hard to pin point riding along and then bike cuts out turn of ignition leave for a minute or two turn ignition back on bike fires straight away now i can then maybe go for a mile and it does the same thing but this is the strange thing it might go for a lot further with no problem also seams strange that you have to turn ignition off as if you don't turn ignition off it will never start looking at the wiring diagram the front brake light switch goes to ignition would this cause symptoms of what im experiencing i did suspect the a and b boxes any ideas please

[kawonda750]

Could be your A box. I had the same problem with my 71 H1. It cools down and then runs again. Otherwise maybe a short in your main ignition wire. The big white one at the switch. Also had that problem.