I have just gone through everything.......................took the limiters off, checked all orings in the carb, checked the pipe baffle, checked the clunk, the lines, and the pressure inlet. The HSN was set at 1.5 turns, and I dont know about the low, as it was 4 3/4 from bottoming out with the slide out of the carb. I will reset to rough factory settings and retune. I dont think it was too rich, as it would pull to rpm everytime on the ground. It may have been a tad on the rich (safe) side, as its a brand new motor. it wouldnt have a tendency to get richer as you bank or climb, but leaner, right? The glow plug looks brand new, and the piston is spotless (no carbon, but its early).

How should the pressure line in the tank be setup with the copper tubing?