Originally Posted by Carter Pewterschmidt
That will effect things Jim, because if set to low your carb wont be open at all. I don't have my factory manual handy but I believe you should turn the idle knob in until the primary carb is at least open a hair or so. Be careful though because if turn it too far that carb will be open too much and you might get some nasty kick back.
Thanks Carter, that's how I've set it now (and kick back was what I was worried about