I imagine that you already did what Diablo said because that's how you said you started it the first time. You need to pull the plug, connect it back to the spark plug lead and ground it to the engine. Turn the power on flip the prop and see if you get a spark. If you don't, try another spark plug. If still no spark, send the engine back to BME for a check. You may have had early life failure (infant mortality) in the ignition system.

You may have only flooded the engine. In that case, if you pulled the plug, it would be drippy wet. If you had a wet carburetor, it can't be a problem with the carburetor keeping it from firing.

Keep us posted,
Ken