RE: Saito 56 probs
Tig, one more little jewel, when the low speed needle is too lean it causes the high speed needle to be vague or even ineffective. In this shot of a Saito carb the "catseye" slot is where the fuel flows into the airstream, the sleeve that slides in and out over the spraybar is the " low speed needle", when the low speed needle covers up too much of the catseye you get the condition you've described.