Hello Microengine

Tim Wilst is right on the money. After you set the needle point the nose of the plane straight up and as the engine sags due to the lean out condition give the needle an adjustment to the rich side untill she is a screaming again. This adjustment will also help with the lean out the engine experiences as the tank empties.

As Bipe Flier noted the Hayes tanks are excellent. I don't even use the DuBro or Sullivan tanks anymore. The Hayes tanks are easier to set up and a lot lighter than the other two brands. Also with the smaller tanks use very flexable fule line to the clunk inside the tank. The line that comes with the tanks often times is not flexable enough for the clunk to move around the way it should. Sig makes a excellent 1/2A fuel line that works great for this.

Darren