I recently degoated my bike. Riding with Harley guys it was a must! I took the belly out, and replaced it with flex tubing and new clamps. Thus making each pipe independent from eachother. But now the left pipe is running with a more "popping" or Compressed sound. The right side sounds smooth or rolls out of pipe. Is this normal or not? I did turn the air/mixture screws out from bottom 2 1/2 turns. Thanks!