I attempted to get my motor up and running. It didn't go so well.Durring starting the motor was not happy .The motor would idle but roughly. As soon as throttle was applied it would quit.I'm using an automotive starter adapted to a 3/8 bolt in the crank to start the engine. The bolt kept backing out when the motor would try to start. The same thing happened when I would let off the starter. The overriding clutch has been disabled in the starter since I had to modify it to spin the other direction. After repeted attempts to start the 3/8 grade 8 bolt broke in the crank. Durring the starting attempts and rough idlingI destroyed the clutch (rember this is a not aircraft usage). That spun the crankshaft. I had removed material from the top of the jug and the head durring the build. Thinking I have to much compression now, I installed a stock head. I thought I should check the glow plug while I had it out, I found an interesting problem. I had the plug mounted in the head. I have wiring running to the glow plug for a remote glow driver. I pressed the head to the jug and applied power to the glow plug. It just dimly lit. I switched to a new battery with the same results. I put a glow driver directly on the plug and it lit brightly. I finally figured out the problem. The block and head don't pass electricity well. I have now put a ground on the plug adapter instead of the motor case. I have not had a chance to try starting again. The clutch is back at the mfg. They think I'm messing with them. They say it is impossible to break the hub in the clutch. I don't know how but it did. I will have to have another crankshaft modified for a clutch. I am going to try to start the motor without the clutch before removing the crank when time permits. Currently I'm swamped at work and home.