Does anyone know of a circuit breaker in the electrical system of a 555B? I bought the machine last summer, and thought I had a bad ignition switch because I can only start the machine with a "hot" trigger that I got from NAPA, basically a short trigger button that you attach to the starter with alligator clips. When I turn the key, it sounds like the power does go to the starter, but only for a sec to try turn it over; it will crank over for a bit, but then nothing! Everything dies: lights, dash lights, etc. Eventually, the power is restored, but then it starts all over again. I checked all of the fuses below the steering wheel, but they are all OK. Would the voltage regulator of the machine, which I believe is over-head in the cab, control the power draw?? Anyone have any experience with this wort of thing?