I have been having problem with my electric system. I had generator rebuilt and rechecked several times, but when I add a new voltage regulator, the amps run positive and correctly in the garage...additionally I have a volt meter plugged in and voltage stays between 6.5 and 6.8 even when lights are turned on. However when I drive the car less than 5 miles down the road, the Amp gauge will suddenly drop to zero and the voltage will start falling off (not charging battery)....I have now been through 3 new voltage regulators. Does anyone have any suggestions or know someone I may contact regarding this issue?