Troy a couple of questions to help me up the steeper part of the YS learning curve:

1) Is is normal for air bubbles to form in the fuel line between the regulator and the carb?

2) Fuel streams out of the air chamber air intake o-ring if it quits with fuel still in the line. Is this normal?

3) Surging is defined as a small (say 100-300 rpm) variation in rpm. This condition at the 4krpm set-point means it's _ _ _ _ (rich/lean)?

Thanks for your time and you many contributions to this board!