Purchased a Mep005A with very low hours and did the single phase split phase conversion on it. It produced power just fine both before the conversion and after. I start it about once a month just to keep everything working. I started it up last week and it would not produce any power. After shutting it down and starting it back up several times I observed that while cranking the engine over the volts would start to climb to about 40 or 50 volts but fall back to 0 when I let off the start switch. By holding the start switch longer than necessary I did get it to climb on up to full power once and worked fine until I shut it down again. Now no power again. Anybody have any idea what that might be?