I started up my 50 yesterday and took it out of the garage to do some cleaning. It started perfect and sat in my driveway for about 6 hours. I went to start it to put it away and nothing, turned the key and no electrical current, touched the starter pedal and no juice. I put a charger on the battery and got a full charge reading, checked grounds, positive leads (all new wiring) and finally put in a different battery. The truck would start but the amp meter was bouncing all over and the power was surging as soon as contact was made with the battery. The ignition switch did work as it should. Do you think there may be a problem with the cutout circut in the voltage regulator?? I have to do some testing toady and see if I can find anything, any ideads are appreciated