Greg,

Several years ago I was playing aroung with running a Magnum 80FS on gasoline and spark ignition. I was not mixing the gas with oil, but injecting oil into the valve cover. The oil was thinned with mineral spirits until a perry ossilating pump could pump it through a needle valve to regulate the amount of oil that was injected. The Mag 80 has the oil vent under the cam area so I plugged that and tapped the crank case cover for the vent. This seemed to provide adequate lubrication. The Mag 80 is still in service on glow after playing with the gas for a couple of years.

Just an idea that might help run fuel to the combustion chamber without oil mixed with it.

Will