Thanks Kelly,
I used your recommendations to set up the fuel system. I can't believe how many questions I have about setting up the engine. I'm sure the engine will become less mystifying once I have run it a few times. I just need to balance the model and charge the batteries....to be ready for the first flight.

I read many of your responses to other modelers about the 600R. I too had problems understanding how to plumb the gas system....but fortunately you provided some clear directions and photos.

Where can I purchase some 4mm tubing?

Thanks again for the help,
Keith