The handle is indeed a propane tank to pre-heat the "glow plug" which I think in reality is the hot bulb. I have received some instructions that say add 10% mixed fuel (50:1 gasoline

il) to diesel to ease the starting. According to Mike Acres site: "Ran on Diesel fuel, kerosene, distillate etc."
Mark[/
Last time we run the Comet chain saw About 20 years ago on a show. we use strait gasoline e free, and then we mix With sae 30 oil. 1 liter gasoline and 3 deciliter motor oil. So the engine is prepared for this mix. Regards Bjorn and Anders swedish friends