For most gensets, simply changing the orifice and a few adjustments will allow the conversion.
Here are links with instructios and video:
http://www.thegoodsurvivalist.com/how-to-convert-your-generat ... read more
Definitely looks like a seal failure. The seal is broken which is causing the cloudy glass. If the glass is not under warranty you should be able to contact a local glass company to do the repair fo ... read more