[SpirosZ1000]

Slide height should be exactly or near to 2mm and you fix this with the idle screw.
Also check what metering rod you have. Before ordering the smartcarb searching the net for info I read about lots of 2strokes working with Q11 rod but mine came from them with Q09 rod which is richer.Gas Gas have also bigger jets than Ktm's for example as from stock.
Fingers crossed mine is working surprising well for it's first hours.