I am sitting here in FL with my shop 1000 mises away, so I have time to think. I have built several hit and miss engines, and they all, run! Galloway, Lil Brother, & Upshur. They all are sensitive to the difference in elevation between the fuel elevation and the carburetor/mixer elevation. I have been thinking about how to ameliorate (big word) this problem. My thought is to place a section of capillary tubing between the fuel tank and the mixer. My thought is that the capillary tubing would act as a quasi-check valve yet still allow enough fuel to go through and run the engine. Capillary tubing ranges in I.D. from .020" to .090"which is within the orifice ranges of hit and miss mixer jets. My thinking is that the combination of the capillary tubing diameter and the mixer needle valve would provide a fine adjustment. Thoughts? Why am I wrong?
Rick