I'm not quite sure about the formula of the fuel I use, because I bought it premixed.
On the container it only says that the oil-percentage is 16%.
I'm guessing that the mixture resembles the PAW mixture for racing (15% oil, 50% paraffin, 32-33% ether, 2-3% IPN)

I'm not quite sure what the compression was when I had the engine running, I'd have to take of the head and measure how far the contra is screwed in. I'll see if I can do that tomorrow. On the OS with the Davis-head we had the compression screw turned out about 1.5-1.75 turns from fully in.

How long would it normally take for a 0.61 diesel to warm up? Mine gets to hot to touch after about 1 minute!