On the bench: New CS .30 inline twin.

Propeller: RAM 10 x 6

Fuel mix: None specified. I used my standard sport diesel brew; 25% castor oil, 35% ether, 38.5% kerosene, and 1.5% IPN.

First fire up: The needle was wound out 2 1/2 turns. It actually fired 3rd flick after choke priming. It starved for fuel and stopped. It hand started easily after I wound the needle out to 4 1/2 turns. The spray bar inlet orifice is only 1/64 " (0.4 mm) diameter. I conclude this is why the needle has to be well backed out. Well filtered fuel will be essential.

Subsequent re-starts were acheived within a few vigorous flicks of a good choked prime. In all, a real possecat. The aficionados in the "club gallery" were impressed.

Six five minute runs were completed. Setting was very rich and undercompressed. Complete cool down between runs. Exhaust efflux was light honey in colour. No signs of distress. Session ended when rain closed in.

Running in will be completed when time and weather permit. If all progresses as anticipated I will post rpm performance. Short iPhone video link of engine running:

http://www.youtube.com/watch?v=PVhav...zdopfsyRcOSiY=