What engine

[Diamondbackrc]

Anyone know what engine this is. It has no markings

[fhhuber]

Looks like an RCFG small gas engine. There were a couple of others very similar. The less than 15cc gasoline engines didn't work out as well as hoped (by any of the makers that tried so far). That one is going to be about 5cc to 7.5cc. (assuming that's the 1/4-32 park plug) Its supposed t have an electronic ignition. It would work with the DLE ignition. It will need a relatively high ratio of oil in the gas. Better to be fouling plug every few flight than to have inadequate oil. Fouling plugs or short engine life are main reasons the small engines didn't work out.

[Diamondbackrc]

Its the same spark plug my weed eater used DJ7J. I found a small 26 on the head

[fhhuber]

Then its a larger displacement than I thought.

[Diamondbackrc]

Thanks for the manufacturer