I haven't done a conversion, but I have a Ryobi (950 I think) and I wish any of my glow engines ran as well as the Ryobi. I've run it for 5-6 hours straight many times, and it never gave a hiccup. It starts fine if you run it exactly the way the book suggests, hot or cold. I've never cleaned the internal filter screen or set the gaps either. It just keeps on running. I changed the plug once in the past 7 years. When I do think about a conversion, it will be this engine that I use. I'll just buy another one for use around the house.

Tatolazo- I hope you find the answer soon. Hope some of the other members can help you out.