Hi
how long takes the engine to get a good compression?

i made a runin to my DM engine when it was in the box it has very good compression with a plug.

the engine finished 4 tanks of gas 550cc each one,+ 4% mineral oil the engine worked pefect and was cold to tuch safely on crankcase and cylinder head.
i think it is ready for test flyat normal use ,not 3D until 10 more litter 2.5 gallons will be burned in it.

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