[TexasSP]

You may have flooded it and slightly fouled the plugs with oil. This happened to me on mine every now and then. Wait a while and try again. When mine would start back up it would smoke heavily through the exhaust burning off the oil for a minute or so. Rotaries work more like a two stroke and burn some oil anyway.

Worst scenario you may have fouled the plugs, but those are cheap.